cos^2b-sin^2b=2cos^2b-1

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Solution for cos^2b-sin^2b=2cos^2b-1 equation:


Simplifying
cos2b + -1sin2b = 2cos2b + -1

Reorder the terms:
bcos2 + -1bin2s = -1 + 2bcos2

Solving
bcos2 + -1bin2s = -1 + 2bcos2

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '-2bcos2' to each side of the equation.
bcos2 + -2bcos2 + -1bin2s = -1 + 2bcos2 + -2bcos2

Combine like terms: bcos2 + -2bcos2 = -1bcos2
-1bcos2 + -1bin2s = -1 + 2bcos2 + -2bcos2

Combine like terms: 2bcos2 + -2bcos2 = 0
-1bcos2 + -1bin2s = -1 + 0
-1bcos2 + -1bin2s = -1

Reorder the terms:
1 + -1bcos2 + -1bin2s = -1 + 1

Combine like terms: -1 + 1 = 0
1 + -1bcos2 + -1bin2s = 0

The solution to this equation could not be determined.

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