Solve for x and find all solutions in degrees from 0 to 360
I know you need to use the identity to turn cos^2x into 1-sin^2x but after I distribute I get lost. Please help me understand the question by writing out thought proccess thanks.
https://www.mathway.com/Algebra says there is no solutions that make this equation true for real numbers.
https://www.wolframalpha.com/input/?i=20cos%5E2%28x%29%2Bsin%284x%29%3D13 Well, wolfram doesn't have specific solution and some are complex no.
I'll try to help
Bring all the sines to one side and numbers to the other.
Hopefully, from there you can find it.
You are very welcome!