1.

If (a_(1)+ib_(1))(a_(2)+ib_(2))….(a_(n)+ib_(n))=A+iB, then (a_(1)^(2)+b_(1)^(2))(a_(2)^(2)+b_(2)^(2))…..(a_(n)^(2)+b_(n)^(2)) is equal to

Answer»

1
`A^(2)+B^(2)`
`A+B`
`1/(A^(2))+1/(B^(2))`

ANSWER :B


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