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F

Furqankhan 14/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Hyperbola

Find the locus of intersection of tangent to a hyperbola, which meet at a constant angle x?

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Rita replied | 22/11/2016

Equation of hyperbola is x2/a2-y2/b2 = 1

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S

Soumya 14/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Hyperbola

Find the equation to the hyperbola whose asymptotes are the straight lines x + 3y – 1= 0 and 2x – y + 7 = 0, and which passes through the point (1, 2)?

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Chirag replied | 23/11/2016

Asymptotes are nothing but tangents at infinity take equation of tangents and solve it.

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Chirag replied | 23/11/2016

Let equation of the hyperbola is (x-h)^2/a^2+(y-b)^2/b^2 and its asymptotes are given by:- y=+or-(b/a)(x-h)+k.
You can compare your equations with this and find relevant values of a, b, h, k and substitute in equation of hyperbola.

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A

Asif 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Trigonometry

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Azaz replied | 20/11/2016

1.7

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Sarvajeet replied | 02/12/2016

(1+(1/square root 2)) or 1.7071

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S

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Daljit Kaur replied | 20/11/2016

-cos x + sin x

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Hussam Uddin replied | 29/11/2016

(-cosx) + (sinx).

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A

Aparna 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Permutations

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Daljit Kaur replied | 24/11/2016

64.

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Hassan replied | 05/12/2016

1/6! +1/(7x6!) =1/(8x7x6!). Take LCM and solve will get x=64.

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N

Neelima 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Permutations

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Debojyoti Roy replied | 28/11/2016

118.

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Sarvajeet replied | 06/12/2016

118.

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M

Mahesh K 12/11/2016 in  Mathematics(Class XI-XII Tuition (PUC))

How can I learn integral calculus

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R

Robin 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Trigonometry

What is the value of sin 50 - sin 70 + sin 10?

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Sonu Pal replied | 18/11/2016

0

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Richa replied | 19/11/2016

0

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S

Shubham 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Trigonometry

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Puneet replied | 22/11/2016

sin45 + (1/sin45)=((sin45)^2 +1)/sin45 =3/(2 *square root 2)

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Sarvajeet replied | 02/12/2016

3/square root 2

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S

Shail 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Integrals

Which is more easier derivative or integration?

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G

Gagan replied | 01/12/2016

Integration is quite easier than derivation.

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K

Kasireddy 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Differential Equations

Determine order and degree of differential equation: dy/dx + 5y = 0?

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Manish replied | 11/12/2016

1,1.

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K

K.vaishali replied | 11/12/2016

Order=1, Degree=1.

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M

Mrs 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Differential Equations

Solve with respect to x: y = e (power x) + 1?

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S

Shiv replied | 19/11/2016

dy/dx=e(power)x

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Hussam Uddin replied | 22/11/2016

y = 2+ x+ x2/2! + x3/3! + ....

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A

Arun 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Differential Equations

Differentiate with respect to x: xy = log y + C?

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Daljit Kaur replied | 24/11/2016

y+xy'= y'/y.

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Tapas replied | 28/11/2016

x(derivative of y) + y(derivative of x) = derivative of (log y) + derivative of C.
remember C is a constant. So,
xy' + y = y'/y + 0 --> xy' + y = y'/y.

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A

Ankit 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Differential Equations

What do you mean by order and degree of the derivative?

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Karuna replied | 22/11/2016

By order we mean number of times the variable has been differentiated and by degree we mean the maximum power of the highest order deriative.

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Saddam Hossain replied | 24/11/2016

The order of a differential equation is the order of the highest order derivative present in the equation.
The degree of a differential equation is the power of the highest order derivative in the equation after it has been made rational and integral as far as derivatives are concerned.
dx is of order 2 and degree 3.

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A

Akhil 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Differential Equations

Solve with respect to x: dy / dx = (1 - cos x) / (1 + cos x)?

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Prateek replied | 19/11/2016

Rationalize it and then separate.

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Sarvajeet replied | 02/12/2016

y= -x+2tan(x/2)+C.

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N

Nalini 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Continuity and Differentiability

Define differentiability?

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Hussam Uddin replied | 22/11/2016

Differential means derivative has a unique value at that point. If a curve is smooth it has only one differential value and it is called differential.

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Sarvajeet replied | 07/12/2016

df/dx= lim f(x+h)-f(x)/ h at h->0.

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B

Bhuvana 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Permutations

Evaluate: 8! / 6! * 2!?

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Tapas replied | 01/12/2016

The problem should be mentioned more clearly. Is it (8!/6!)*2! or 8!/(!6*!2)?
If it is (8!/6!)*2! Then the solution:
8! = 8x7x6x5x4x3x2x1, 6! = 6x5x4x3x2x1, 2!=2. So, (8!/6!)*2! = 56x2 = 112.

If it is 8!/(6!*2!) The the solution:
8! = 8x7x6x5x4x3x2x1, 6! = 6x5x4x3x2x1, 2!=2. So, 8!/(6!*2!) = 56/2 = 28

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Sreedevi replied | 01/12/2016

The problem is not clear. If we consider the problem as (8!/6!) * 2! we can proceed like this:
8! can be written as 8*7*6!. 6! can be cancelled both in the numerator and denominator. We are left with 8*7*2 ( since 2! = 2*1 =2) = 112.
If we consider the problem as 8!/(6!*2!). we get 28.

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R

Rahul 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Permutations

A coin is tossed 3 times and the outcomes are recorded. How many possible outcomes are there?

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Y

Yash replied | 22/11/2016

8

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Sarvajeet replied | 06/12/2016

8.

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M

Madhu 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Permutations

How many 5 - digit telephone numbers can be constructed using the digits 0 to 9 if each number starts with 67 and no digit appears more than once?

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Y

Yash replied | 22/11/2016

Rs. 336

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Sarvajeet replied | 06/12/2016

336.

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D

Divya 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Permutations

How many 3 - digit numbers can be formed from the digits 1, 2, 3, 4, 6 assuming that repetition is not allowed?

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Sarvajeet replied | 02/12/2016

60

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Sanjeev replied | 03/12/2016

5C3*3! = 10*6 = 60.

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A

Ananya 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Permutations

Define permutation?

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Abhilash replied | 02/12/2016

In mathematics, the notion of permutation relates to the act of arranging all the members of a set into some sequence or order, or if the set is already ordered, rearranging (reordering) its elements, a process called permuting.

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Sarvajeet replied | 06/12/2016

In mathematics, the notion of permutation relates to the act of arranging all the members of a set into some sequence or order, or if the set is already ordered, rearranging (reordering) its elements, a process called permutation.

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P

Parminder 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Permutations

How many 3- digit numbers can be formed by using the digits 1 to 9 if no digit is repeated?

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Siva replied | 07/12/2016

336.

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K

Kavya replied | 08/12/2016

504.

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K

Komal 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Permutations

How many words can be formed without repeating the words from the word MONDAY?

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Tapas replied | 04/12/2016

The number of letters in MONDAY is 6 and all are different. So, the number of words that can be formed is !6 = 720.

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Sarvajeet replied | 06/12/2016

6! = 720.

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N

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Sanjeev replied | 07/12/2016

Put x = 45 degree.

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Sanjeev replied | 07/12/2016

Put x = 45 degree value =a.

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D

Deepthi 10/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Trigonometry

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S

Shiv replied | 19/11/2016

1

0 0

Sarvajeet replied | 02/12/2016

1

0 0

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