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M

Mukundan 10 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Continuity and Differentiability

A function f(x) is defined as:
f(x) = {x - 6 / x - 3; 5 if x = 3
Show that f(x) is continuous at x = 3?

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Answer

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J

Jayashree 10 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Continuity and Differentiability

Find the value of a if the function f(x) is defined by: f(x) = 2x - 1; a, x = 2; x + 1, x > 2?

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Answer

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D

Dr. 10 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Continuity and Differentiability

What do you mean by L. H. L and R. H. L?

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Answer

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S

Santosh 10 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Continuity and Differentiability

Find the rate of change of the area of a circle with respect to its radius r when r = 5 cm?

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Answer

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T

Tashiruddin 10 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Continuity and Differentiability

The total revenue in rupees received from the sale of x units of a product is given by: R(x) = 13x + 15. Find the marginal revenue when x = 7?

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Answer

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H

Hemlata 10 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Continuity and Differentiability

Find the rate of change of the circle with respect to its radius r at r = 6 cm?

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Answer

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A

Aditya 10 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Continuity and Differentiability

Solve the function with respect to x which is strictly increasing on R: f(x) = 3x + 17?

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Answer

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A

Archit 10 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Continuity and Differentiability

Show that the function given by: f(x) = [(e) power 2x]?

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Answer

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K

K. 10 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Continuity and Differentiability

Find all the points of discontinuity of f, where f(x) = sin x / x; x + 1 if x = 0 and x < 0?

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Answer

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A

Amit 10 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Continuity and Differentiability

What do you mean by the function is strictly increasing and decreasing with respect to continuity?

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Answer

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A

Asif 10 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Continuity and Differentiability

Find the value of k: f(x) = kx + 1; 3x - 5 if x < 5 at x = 5?

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Answer

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P

Parminder 10 Nov 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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Answer

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K

Kavitha 08 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Vector Algebra

If angle is zero then what is the product of two vectors a and b?

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Hussam Uddin replied | 5 days ago

Dot product is mod a * mod b. Vector product is zero.

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Answer

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S

Swati 08 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Conic Sections

Find the equation of the circle having (1, -2) as its centre and passing through 3x + y = 14, 2x + 5y = 18?

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Hussam Uddin replied | 22 Nov

Equation of circle is (x-1)2 + (y +2)2 = r2 , we need to find r , point of intersection of 2 lines is 13x = 52, x= 4 , y = 2, therefore r2 = 25.

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Answer

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H

Himanshu 08 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Limits and Derivatives

What are the properties of limit?

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Rahulkumar replied | 26 Nov

Limit stand for value of function. Near that value of variable not exactly at value of variable but very close to it.
It simply show how function behave at any value and we generally check it for extreme condition where we have doubt regarding behaviour of function and we can use other operator on them like differentiation and integration etc.

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A

Ananya 08 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Limits and Derivatives

What is the derivative of sin(x)?

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Puneet replied | 22 Nov

-sin(x)

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Puneet replied | 22 Nov

cos(x)

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Answer

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M

Medha 08 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Linear Programming

Define linear programming?

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Hussam Uddin replied | 22 Nov

Set of values of points x, y which follows certain constraints.

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Answer

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K

Kalyani 08 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Linear Programming

Define constraints with respect to linear programming?

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Hussam Uddin replied | 22 Nov

Constraints is nothing but set of conditions which equations follow.

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Answer

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B

Bijoy 09 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Mathematical Reasoning

Change the statement to negative statement: p - New Delhi is a city?

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Manan replied | 19 Nov

New Delhi is not a village.

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Answer

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T

Tushar 09 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Mathematical Reasoning

Write the negation of the given statement: root 7 is a rational number?

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Prateek replied | 19 Nov

No, irrational.

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Answer

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B

Brunda 09 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Matrices

What is the general equation of matrix?

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S

Shiva Kumar replied | 19 Nov

AX=B

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Answer

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S

Sujatha 09 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Matrices

Construct a 3 x 2 matrix whose elements are given by: a(ij) = 1 / 2[i - 3j]?

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Richa replied | 19 Nov

The answer is given below

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Answer

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N

Neeta 09 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Matrices

Given: A = [3 8 9] and B = [-2 3 0]; find A + B?

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Sarvajeet Kumar replied | 23 Nov

[1 11 9].

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Answer

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S

Sweta 09 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Determinants

Why determinants is applying to matrices?

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Hussam Uddin replied | 23 Nov

Determinant is use to give the magnitude of a vector of n dimensions. Suppose if you apply force in 4 perpendicular directions then it's magnitude is nothing but determinant. You can't simply add those forces you have to use matrices and then determine magnitude.

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Answer

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M

Madhu 09 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Determinants

Find the determinant of A = [2 5] and B = [6 9]?

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Hussam Uddin replied | 22 Nov

sq root 29 , sq root 117

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Answer

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