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If A is an 3xx3 non-singular matrix s...

If A is an `3xx3` non-singular matrix such that `AA^'=""A^' A` and `B""=""A^(-1)A^'` , then BB equals (1) `I""+""B` (2) `I` (3) `B^(-1)` (4) `(B^(-1))^'`

A

`B^(-1)`

B

`(B^(-1))'`

C

I + B

D

I

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The correct Answer is:
D
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DISHA PUBLICATION-DETERMINANTS-EXERCISE -2 CONCEPT APPLICATOR
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  13. The value of the determinant |{:(1^(2),2^(2),3^(2),4^(2)),(2^(2),3^(2)...

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  14. The value of the determinant |{:(1 ,(5^(2x)-5^(-2x))^(2),(5^(2x)-5^(-2...

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  15. If a^(2)+b^(2)+c^(2)=-2 and |{:(1+a^(2)x,(1+b^(2))x,(1+c^(2))x),((...

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  16. If A1B1C1 , A2B2C2 and A3B3C3 are three digit numbers, each of which ...

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  17. If Sr = alpha^r + beta^r + gamma^r then show that |[S0,S1,S2],[S1,S2,S...

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  18. If f(x) = |{:(cos^(2)x, cosx.sinx, -sin x),(cos x sinx ,sin^(2)x ,cos ...

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  19. the value of the determinant |{:((a(1)-b(1))^(2),,(a(1)-b(2))^(2),,...

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