## greysmither Group Title How do you solve 2sin^2 (theta) + cos(theta)=2? 2 years ago 2 years ago

1. ghass1978

try substituting (sin^x)^2=1-(cos^x)^2

2. MAYUR2345

60 OR 90 DEGREE

3. MrYantho

$2\sin^2\theta+\cos \theta=2$ We know that: $\sin^2\theta = (1-\cos^2\theta)$ So we can substitute and get: $2(1-\cos^2\theta)+\cos \theta = 2$