Question

sin^2(theta)+cos(theta)=2
Use the Pythagorean identity sin^2(theta)+cos^2(theta)=1 to replace sin^2(theta) in the given equation

Answer 1

Let's use x instead of theta.

Answer 2

\[\sin ^2x+\cos x=2\]
\[1-\cos ^2x+\cos x=2\]

Answer 3

\[\cos ^2x-\cos x+1=0\]