# Solve 2sin2

• Solve 2sin2

I am trying to solve for $x$ in the following equation: $$\cos^2x-\sin^2x= 1$$ Given that $\cos^2x+\sin^2x= 1$, is this something I could use to solve it?
Positive: 27 %
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Solve 2sin2A = 1 for 0º≤A≤270º. Mathematics katieb; 4 years ago. See more answers at brainly.com. anonymous; 4 years ago. is the answer 45º, 135 ...
Positive: 27 %
10 - 4 Solving trig equations Try the quiz at the bottom of the page! go to quiz When solving trig equations, there are some rules you should try to follow:
Positive: 22 %
to solve 2sin^2x + 3sinx = 2, let sinx = a. then the equation becomes, 2a^2 +3a = 2. 2a^2 +3a-2 = 0 factorising the equation , we get, 2a^2 +4a-1a-2 = 0