4cos^2x+15sinx-13=0

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Solution for 4cos^2x+15sinx-13=0 equation:


Simplifying
4cos2x + 15sinx + -13 = 0

Reorder the terms:
-13 + 4cos2x + 15insx = 0

Solving
-13 + 4cos2x + 15insx = 0

Solving for variable 'c'.

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

Add '13' to each side of the equation.
-13 + 4cos2x + 13 + 15insx = 0 + 13

Reorder the terms:
-13 + 13 + 4cos2x + 15insx = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 4cos2x + 15insx = 0 + 13
4cos2x + 15insx = 0 + 13

Combine like terms: 0 + 13 = 13
4cos2x + 15insx = 13

Add '-15insx' to each side of the equation.
4cos2x + 15insx + -15insx = 13 + -15insx

Combine like terms: 15insx + -15insx = 0
4cos2x + 0 = 13 + -15insx
4cos2x = 13 + -15insx

Divide each side by '4os2x'.
c = 3.25o-1s-2x-1 + -3.75ino-1s-1

Simplifying
c = 3.25o-1s-2x-1 + -3.75ino-1s-1

Reorder the terms:
c = -3.75ino-1s-1 + 3.25o-1s-2x-1

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