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if cosec theta + cot theta = 1/7, 9pie/2 then find sinthetacostheta.

if cosec theta + cot theta = 1/7,
9pie/2
then find sinthetacostheta.

Grade:11

1 Answers

Vikas TU
14149 Points
6 years ago
cosec theta + cot theta = 1/7,
7(1 + costhetha) = sinthetha
= > 7cos^2(thetha/2) – sin(thetha/2)*cos(thetha/2) = 0
= > costhetha/2 = 0  or  tanthetha/2 = 7
thetha/2 = (2n+1)pie/2
thetha = (2n+1)pie
put it get thenanswer.


 

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