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माना कि theta, phi epsilon [0,2pi] इस प...

माना कि `theta, phi epsilon [0,2pi]` इस प्रकार है कि `2costheta(1-sinphi)=sin^(2)theta(tan.(theta)/(2)+cot.(theta)/(2))cos phi-1,tan (2pi-theta)gt0` और `-1ltsinthetalt(sqrt(3))/(2)` तब `phi` निम्न में से किसको संतुष्ट नहीं कर सकता

A

`0ltvarphiltpi/2`

B

`pi/2ltvarphilt(4pi)/(3)`

C

`(4pi)/(3)lt varphi lt(3pi)/(2)`

D

`(3pi)/(2)ltvarphi lt2pi`

लिखित उत्तर

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The correct Answer is:
A, C, D
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