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If A={:[(p,-1),(q,1)]:},B={:[(1,-1),(1,2...

If `A={:[(p,-1),(q,1)]:},B={:[(1,-1),(1,2)]:}and(A+B)^(2)=A^(2)+2AB+B^(2)`, then p-q= _______ .

A

2

B

-1

C

3

D

1

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • Let A=[{:(a,b,c),(p,q,r),(1,1,1):}]and B=A^(2) If (a-b)^(2) +(p-q)^(2) =25, (b-c) ^(2)+ (q-r)^(2)= 36 and (c-a)^(2) +(r-p)^(2)=49, then det B is

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    864
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  • If { (1)/(2) (a -b) } ^(2) + ab = p (a =b) ^(2), then the value of

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