1.

IfA=[(1,-1),(2,-1)],B = [(x,1),(4,-1)] and A^2+B^2=(A+B)^2 find the value of x. State, whether A^2 + B^2 and (A + B)^2are always equal or not.

Answer»


ANSWER :X = 1 ; no they are not ALWAYS EQUAL


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