Asked by Kaur
Solution of
2(sin^2theta - cos^2theta)=7sintheta costheta
2(sin^2theta - cos^2theta)=7sintheta costheta
Answers
Answered by
oobleck
recall the double-angle formulas, and you have
-2cos2θ = 7/2 sin2θ
tan2θ = -4/7
and so on ...
-2cos2θ = 7/2 sin2θ
tan2θ = -4/7
and so on ...
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