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If I=[(1 ,0),( 0, 1)] , J=[(0, 1),(-1 ,...

If `I=[(1 ,0),( 0, 1)]` , `J=[(0, 1),(-1 ,0)]` and `B=[(costheta,sintheta),(-sintheta,costheta)]` , then `B` equals a) `Icostheta+Jsintheta` (b) `Isintheta+Jcostheta` (c) `Icostheta-Jsintheta` (d) ` Icostheta+Jsintheta`

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RD SHARMA ENGLISH-ALGEBRA OF MATRICES-All Questions
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  5. If I=[(1 ,0),( 0, 1)] , J=[(0, 1),(-1 ,0)] and B=[(costheta,sintheta...

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  7. If A=[a(i j)] is a scalar matrix of order nxxn such that a(i i)=k f...

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  8. The matrix A=[[0, 0, 4] ,[0 ,4, 0] ,[4 ,0, 0]] is a (a) square matrix...

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  12. If A and B are two matrices of the order 3 xx m and 3 xx n, respective...

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  13. If A is a matrix of order mxxn and B is a matrix such that A B^T and B...

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  14. If A and B are matrices of the same order, then A B^T-B A^T is a (a)...

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  15. If matrix A=([a(i j)])(2xx2) , where a(i j)={1,\ if\ i!=j0,\ if\ i=j ,...

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  18. If A=[(2,-1,3),( -4,5 ,1)] and B=[(2 ,3 ),( 4,-2),( 1 ,5)] , then ...

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  19. The matrix A=[(0,-5, 8),( 5, 0, 12),(-8,-12, 0)] is a (a) diagonal m...

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