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NDA || Mathematics || Algebra || Inverse Matrix || Quiz 2020

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Question 1

If A5 = O such that An ≠ I for 1 ≤ n ≤ 4, then (1 - A)-1 equals

Question 2

If Matrix  such that Ax = I, then x = ____

Question 3

If and then which of the following is/are correct?

1) is a unit matrix.

2)

Select the correct answer using the code given below :

Question 4

What is the adjoint of the matrix ?

Question 5

What is the inverse of the matrix ?

Question 6

If  has no inverse, then the real value of y is

Question 7

If  are non- zero real numbers, then the inverse of the matrix  is equal to

Question 8

If the matrix A is such that   , then what is A equal to?

Question 9

If M is any given square matrix of order n , then M.(adj M) = ?

Question 10

Which of the following is the matrix that satisfies Aij=2|i-3j|
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Jun 23CDS & Defence