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If A=1/3|[1, 2, 2], [2, 1,-2],[a,2,b]| i...

If `A=1/3|[1, 2, 2], [2, 1,-2],[a,2,b]|` is an orthogonal matrix, then `a=-2` b. `a=2,b=1` c. `b=-1` d. `b=1`

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CENGAGE PUBLICATION-MATRICES-All Questions
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  2. Let Aa n dB be two nonsingular square matrices, A^T a n dB^T are the t...

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  3. If A=1/3|[1, 2, 2], [2, 1,-2],[a,2,b]| is an orthogonal matrix, then ...

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  4. If A is a matrix such that A^2+A+2I=Odot, the which of the following i...

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  6. If |(1,-t a ntheta),(t a ntheta,1)| |(1,t a ntheta),(-t a ntheta,1)|^-...

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  7. If A=[[3,-3, 4], [2,-3, 4], [0,-1, 1]] , then a. a d j(a d j A)=A b. |...

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  11. If the matrices, A ,B ,(A+B) are non-singular, then prove that [A(A+B)...

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  12. Let A and B be two 2xx2 matrices. Consider the statements (i) A B=0 ...

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  13. The inverse of a skew-symmetric matrix of odd order a. is a symmetric...

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  14. The number of diagonal matrix, A of ordern which A^3=A is a. 1 b. 0 ...

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  15. Find the points at which the function f given by f(x)=(x+1)^3 has loca...

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  17. If A=[(a,b),(0,a)] is nth root of I(2), then choose the correct statem...

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  18. Let A ,B be two matrices such that they commute, then for any positive...

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