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Cosec theta - cot theta =x then find cosec theta + cot theta

Cosec theta - cot theta =x then find cosec theta + cot theta

Grade:10

1 Answers

sreya c
23 Points
6 years ago
let theta=y
we have an identity that is cosec^2(Y)-cot^2(Y)=1
therefore using it we can find the answer
cosec^2(Y)-cot^2(Y)=1
[cosec(Y)+cot(Y)][cosec(Y)-cot(Y)]=1            {since a^2-b^2=[a+b][a-b]}
[cosec(Y)+cot(Y)][x]=1                                 {from given}
cosec(Y)+cot(Y)=1/x

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