Question

If sec thita (1+sinthita)(1-sinthita) =k then find the value of k

Answer 1

Answer:

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Answer 2

Answer:

k=cosθ

Step-by-step explanation:

secθ(1+sinθ)(1-sinθ)=k

secθ(1²-sin²θ)=k

secθ×(1-sin²θ)=k

secθ×cos²θ=k

secθ×1/sec²θ=k

1/secθ=k

=>k=cosθ