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QUESTION
Q
If Secθ − Cosθ = 3/2 where θ is a positive acute angle, then the value of Secθ is ?

Solution

Secθ − Cosθ = 3/2 1/Cosθ − Cosθ = 3/2 (1 − Cos2θ)/Cosθ = 3/2 2 − 2Cos2θ = 3Cosθ 2Cos2θ...

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