2cos^2x-sinx-2=0

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Solution for 2cos^2x-sinx-2=0 equation:


Simplifying
2cos2x + -1sinx + -2 = 0

Reorder the terms:
-2 + 2cos2x + -1insx = 0

Solving
-2 + 2cos2x + -1insx = 0

Solving for variable 'c'.

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

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

Reorder the terms:
-2 + 2 + 2cos2x + -1insx = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 2cos2x + -1insx = 0 + 2
2cos2x + -1insx = 0 + 2

Combine like terms: 0 + 2 = 2
2cos2x + -1insx = 2

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

Combine like terms: -1insx + insx = 0
2cos2x + 0 = 2 + insx
2cos2x = 2 + insx

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

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

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

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