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## Question

### Solution

Correct option is

25

Given that C = 5A

.

#### SIMILAR QUESTIONS

Q1

, the inverse of A is

Q2

and I is a unit matrix.

Q3

If a, b, c are in A.P. and  then f’(x) is :

Q4
Q5

The set of equations

;

;

.

Q7
Q8

If xyz are integers in AP, lying between 1 and 9, and x51, y41 and z31 are three-digit numbers then the value of

Q10

Let p be a non-singular matrix  (O denotes the null matrix), then p–1 is ;