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If A=[(cosalpha,-sinalpha),(sinalpha,cos...

If `A=[(cosalpha,-sinalpha),(sinalpha,cosalpha)]` is identity matrix, then write the value of `alpha` .

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RD SHARMA ENGLISH-ALGEBRA OF MATRICES-All Questions
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  3. If A=[(cosalpha,-sinalpha),(sinalpha,cosalpha)] is identity matrix, t...

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  5. If I is the identity matrix and A is a square matrix such that A...

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  8. What is the total number of 2xx2 matrices with each entry 0 or 1...

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  18. If 2|(3, 4),( 5,x)|+|(1,y),(0, 1)|=|(7, 0),(10, 5)| , find x-y .

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  20. If [a+4 3b8-6]=[2a+2b+2 8a-8b] , write the value of a-2b .

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