Question

# If A = and A^{2} + kI = 8A, then k equals

- 4
- 8
- ¼
- 1/16

## The correct answer is: 8

### To find the value of k.

Given, A = and + kI = 8A.

x + k x = 8 x

+ =

comparing on both sides,

16+k=24

k=8

Therefore, the value of k is 8.

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In this question, we have to find the statements are the correct or not and statement 2 is correct explanation or not, is same as assertion and reason.