if `[{:(3,2),(7,5):}]A{:[(-1,1),(-2,1):}]={:[(2,-1),(0,4):}]` then trace of A is equal toA. `-11`B. `-21`C. `-25`D. `-15`

if `[{:(3,2),(7,5):}]A{:[(-1,1),(-2,1):}]={:[(2,-1),(0,4):}]` then tra

1.	if `[{:(3,2),(7,5):}]A{:[(-1,1),(-2,1):}]={:[(2,-1),(0,4):}]` then trace of A is equal toA. `-11`B. `-21`C. `-25`D. `-15`
Answer» Correct Answer - B `becausePAQ=B` `AQ=P^(-1)B` `A=P^(-1)BQ^(1)` `[{:(-16,3),(24,-5):}]` `thereforetr(A)=-21`

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if `[{:(3,2),(7,5):}]A{:[(-1,1),(-2,1):}]={:[(2,-1),(0,4):}]` then trace of A is equal toA. `-11`B. `-21`C. `-25`D. `-15`

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