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ghass1978Best ResponseYou've already chosen the best response.0
try substituting (sin^x)^2=1(cos^x)^2
 2 years ago

MrYanthoBest ResponseYou've already chosen the best response.0
\[2\sin^2\theta+\cos \theta=2\] We know that: \[\sin^2\theta = (1\cos^2\theta)\] So we can substitute and get: \[2(1\cos^2\theta)+\cos \theta = 2\]
 2 years ago
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