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Grade 12th passTrigonometry

If sintheta + costheta / sintheta - costheta = 3 thrn the vakuv of sin^4 theta = ?

Profile image of Sumeet Kashyap
7 Years agoGrade 12th pass
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1 Answer

Profile image of Aditya Gupta
7 Years ago
Let theta=x
Simply rearrange to get
sinx=2cosx
Squaring
sin^2x=4-4sin^2x
So sin^2x= 4/5
Squaring once again we get the answer as
16/25

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