1.

If (1 + cos theta - isin theta) ( 1+ cos 2 theta + isin 2 theta) = x +iy then x^(2) + y^(2) =

Answer»

`16 cos^(2) THETA sin^(2) ((theta)/(2))`
`16 sin^(2) theta cos^(2) ((theta)/(2))`
`16 sin^(2) theta sin^(2) ((theta)/(2))`
`16 cos^(2) theta cos^(2) ((theta)/(2))`

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