cos^2(x)-sin^2(x)-sin(x)=0

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Solution for cos^2(x)-sin^2(x)-sin(x)=0 equation: 


Simplifying
cos2(x) + -1sin2(x) + -1sin(x) = 0

Multiply cos2 * x
cos2x + -1sin2(x) + -1sin(x) = 0

Multiply in2s * x
cos2x + -1in2sx + -1sin(x) = 0

Multiply ins * x
cos2x + -1in2sx + -1insx = 0

Reorder the terms:
cos2x + -1insx + -1in2sx = 0

Solving
cos2x + -1insx + -1in2sx = 0

Solving for variable 'c'.

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

Add 'insx' to each side of the equation.
cos2x + -1insx + insx + -1in2sx = 0 + insx

Combine like terms: -1insx + insx = 0
cos2x + 0 + -1in2sx = 0 + insx
cos2x + -1in2sx = 0 + insx
Remove the zero:
cos2x + -1in2sx = insx

Add 'in2sx' to each side of the equation.
cos2x + -1in2sx + in2sx = insx + in2sx

Combine like terms: -1in2sx + in2sx = 0
cos2x + 0 = insx + in2sx
cos2x = insx + in2sx

Divide each side by 'os2x'.
c = ino-1s-1 + in2o-1s-1

Simplifying
c = ino-1s-1 + in2o-1s-1

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