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Rasneet 09/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Matrices

What do you mean by equality of matrix?

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Tapas replied | 27/11/2016

If each matrix has:-
(1) the same number of rows,
(2) the same number of columns and
(3) corresponding elements within each matrix are equal then the two matrices are said to be equal.

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Answer

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N

Neeta 09/11/2016 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 replied | 23/11/2016

[1 11 9].

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M

Milan 09/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Matrices

If A = [9 0 8], B = [6 8 9] then find AB, BA. Show that AB = BA?

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Sarvajeet replied | 03/12/2016

AB=BA=O
Where O=Zero matrix.

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J

Jayshree 09/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Matrices

If A = [6 8 4], B = [0 5 8], C = [5 23 31]. Then find A(BC), (AB)C?

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Shreyans replied | 08/12/2016

First of all it's not possible to multiply matrix as per rule.
If I want to multiply tow matrix first matrix column and second matrix row should be same.

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Answer

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T

Thomas 09/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Matrices

Define transpose of matrix?

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Shreyans replied | 08/12/2016

Convert row into Column.
e.g.: [ 1 2 3]
[1
2
3 ]

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V

Vishvajeet 09/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Determinants

What do you mean by rectangular matrix?

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Chilla Rajesh replied | 01/12/2016

A matrix which consist m rows and n column, where m is not equal to n.

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Answer

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S

Sweta 09/11/2016 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 | 23/11/2016

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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M

Madhu 09/11/2016 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 | 22/11/2016

sq root 29 , sq root 117

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V

Vikash 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Conic Sections

Find the equation of the circle which touches the both axes first quadrant and whose radius is (a)?

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A

Alby 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Conic Sections

Show that the point (x, y) given by: x = 2at / (1 + square of t) and y = a (1 - square of t) / 1 + t lies on a circle for all real values of t such that - 1 < t < 1 where a is any given real numbers?
If a circle passes through the point (0, 0) (a, 0) (0, b) then find the coordinates of its circle?

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T

Thinagaran 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Conic Sections

Find the equation of the circle which touches x - axis and whose centre is (1, 2)?

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Answer

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G

Gagandeep 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Conic Sections

If the lines 3x - 4y + 4 = 0 and 6x - 8y - 7 = 0 are tangents to a circle, then find the radius of the circle?

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Answer

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M

Mukesh 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Conic Sections

If one end of a diameter of the circle (square of x) + (square of y) - 4 - 6y + 11 = 0 is (3, 4), then find the coordinate of the other end of the diameter?
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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S

Saritha 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Conic Sections

Find the equation of the circle if the ends of a diameter are (-1, 4) and (3, -8)?

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M

Madhavan 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Conic Sections

Find the equation of the circle which passes through the points (1, 3), (2, 3) and whose centre lies on the line 2x + 3y - 1 = 0?

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V

Vishal 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Conic Sections

Define a parabola as the locus of a point?

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A

Anand 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Conic Sections

Prove that the length of the latus rectum of the Parabola: (square of y) = 4ax is 4a?

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B

Bala 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Conic Sections

Define the equation of the parabola in the standard form: (square of y) = 4ax?

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A

Aishwarya 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Conic Sections

Find the equation of the Parabola which is symmetric about y - axis, vertex origin and which passes through (6, -8)?

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K

Kratika 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Limits and Derivatives

Define Limit?

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T

Thimma 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Limits and Derivatives

Define derivative?

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A

Ankit 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Limits and Derivatives

What do you mean by continuity?

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Answer

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I

Imran 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Limits and Derivatives

What is the general equation of the limit?

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Answer

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J

Jaleeluddin 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Limits and Derivatives

What is the general form of sum rule of theorem 1 of limit?

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Answer

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S

Seemi 08/11/2016 in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Limits and Derivatives

Find the limit by using suitable property: lim(x tends to c) [(cube of x) + 4(square of x) - 3]?

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