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If z=cosalpha+isinalpha,0ltalphalt(pi)/(...

If `z=cosalpha+isinalpha,0ltalphalt(pi)/(4)" then "|(1+z^(4))/(1-z^(3))|`

A

`(cos2alpha)/(sin""(3)/(2)alpha)`

B

`(cosalpha)/(sin""(3)/(2)alpha)`

C

`(cos2alpha)/(sin""(alpha)/(2))`

D

`(cosalpha)/(sin""(alpha)/(2))`

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The correct Answer is:
A
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TS EAMCET PREVIOUS YEAR PAPERS-TS EAMCET 2019 (6 MAY SHIFT 1)-MATHEMATICS
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