-sin^2x-2cos^2x+4=0

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Solution for -sin^2x-2cos^2x+4=0 equation: 


Simplifying
-1sin2x + -2cos2x + 4 = 0

Reorder the terms:
4 + -2cos2x + -1in2sx = 0

Solving
4 + -2cos2x + -1in2sx = 0

Solving for variable 'c'.

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

Add '-4' to each side of the equation.
4 + -2cos2x + -4 + -1in2sx = 0 + -4

Reorder the terms:
4 + -4 + -2cos2x + -1in2sx = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -2cos2x + -1in2sx = 0 + -4
-2cos2x + -1in2sx = 0 + -4

Combine like terms: 0 + -4 = -4
-2cos2x + -1in2sx = -4

Add 'in2sx' to each side of the equation.
-2cos2x + -1in2sx + in2sx = -4 + in2sx

Combine like terms: -1in2sx + in2sx = 0
-2cos2x + 0 = -4 + in2sx
-2cos2x = -4 + in2sx

Divide each side by '-2os2x'.
c = 2o-1s-2x-1 + -0.5in2o-1s-1

Simplifying
c = 2o-1s-2x-1 + -0.5in2o-1s-1

Reorder the terms:
c = -0.5in2o-1s-1 + 2o-1s-2x-1

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