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If (x+iy)^7=a+ib, then (y+ix)^7 is equal...

If `(x+iy)^7=a+ib`, then `(y+ix)^7` is equal to

A

b+ia

B

-(b+ia)

C

-i(a+ib)

D

-a+ib

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PATHFINDER-COMPLEX NUMBER-QUESTION BANK
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