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Ex 3.2

Ex 3.2, 1

Ex 3.2, 2 (i)

Ex 3.2, 2 (ii) Important

Ex 3.2, 2 (iii)

Ex 3.2, 2 (iv)

Ex 3.2, 3 (i)

Ex 3.2, 3 (ii) Important

Ex 3.2, 3 (iii)

Ex 3.2, 3 (iv) Important

Ex 3.2, 3 (v)

Ex 3.2, 3 (vi) Important

Ex 3.2, 4

Ex 3.2, 5

Ex 3.2, 6

Ex 3.2, 7 (i)

Ex 3.2, 7 (ii) Important

Ex 3.2, 8

Ex 3.2, 9 You are here

Ex 3.2, 10

Ex 3.2, 11

Ex 3.2, 12 Important

Ex 3.2, 13 Important

Ex 3.2, 14

Ex 3.2, 15

Ex 3.2, 16 Important

Ex 3.2, 17 Important

Ex 3.2, 18

Ex 3.2, 19 Important

Ex 3.2, 20 Important

Ex 3.2, 21 (MCQ) Important

Ex 3.2, 22 (MCQ) Important

Chapter 3 Class 12 Matrices

Serial order wise

Last updated at June 7, 2023 by Teachoo

Ex 3.2,9 Find x and y, if 2[■8(1&[email protected]&𝑥)] + [■8(𝑦&[email protected]&2)] = [■8(5&[email protected]&8)] Given that 2[■8(1&[email protected]&𝑥)] + [■8(𝑦&[email protected]&2)] = [■8(5&[email protected]&8)] [■8(1×2&3×[email protected]×2&𝑥×2)] + [■8(𝑦&[email protected]&2)] = [■8(5&[email protected]&8)] [■8(𝟐&𝟔@𝟎&𝟐𝒙)] + [■8(𝒚&𝟎@𝟏&𝟐)] = [■8(𝟓&𝟔@𝟏&𝟖)] [■8(2+𝑦&[email protected]+1&2𝑥+2)] = [■8(5&[email protected]&8)] [■8(𝟐+𝒚&𝟔@𝟏&𝟐𝒙+𝟐)] = [■8(𝟓&𝟔@𝟏&𝟖)] Since matrices are equal. Corresponding elements are equal Therefore, 2 + y = 5 2x + 2 = 8 Solving (1) 2 + y = 5 y = 5 – 2 y = 3 Solving (2) 2x + 2 = 8 2x = 8 – 2 2x = 6 x = 𝟔/𝟐 = 3 Hence, x = 3 & y = 3