The expression (1+sin2alpha)/(cos(2alp...

The expression `(1+sin2alpha)/(cos(2alpha-2pi)tan(alpha-(3pi)/(4)))-(1)/(4)sin2alpha["cot"(alpha)/(2)+cot((3pi)/(2)+(alpha)/(2))]` when simplified reduces to

A

1

B

0

C

`sin^(2)(alpha//2)`

D

`sin^(2)alpha`

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The correct Answer is:

D

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