Math, asked by GAJEANDRA, 6 months ago

It coseco + coto-5 then evaluate seco.​

Answers

Answered by sandy1816
0

Step-by-step explanation:

cosecθ+cotθ=5

➡(1+cosθ)/sinθ=5

➡1+cosθ=5sinθ

➡(1+cosθ)²=25sin²θ

➡(1+cosθ)²=25(1-cos²θ)

➡(1+cosθ)²=25(1+cosθ)(1-cosθ)

➡1+cosθ=25(1-cosθ)

➡1+cosθ=25-25cosθ

➡26cosθ=24

➡cosθ=24/26=12/13

➡secθ=13/12

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