4sin^2x-8cosx-7=0

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Solution for 4sin^2x-8cosx-7=0 equation: 


Simplifying
4sin2x + -8cosx + -7 = 0

Reorder the terms:
-7 + -8cosx + 4in2sx = 0

Solving
-7 + -8cosx + 4in2sx = 0

Solving for variable 'c'.

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

Add '7' to each side of the equation.
-7 + -8cosx + 7 + 4in2sx = 0 + 7

Reorder the terms:
-7 + 7 + -8cosx + 4in2sx = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -8cosx + 4in2sx = 0 + 7
-8cosx + 4in2sx = 0 + 7

Combine like terms: 0 + 7 = 7
-8cosx + 4in2sx = 7

Add '-4in2sx' to each side of the equation.
-8cosx + 4in2sx + -4in2sx = 7 + -4in2sx

Combine like terms: 4in2sx + -4in2sx = 0
-8cosx + 0 = 7 + -4in2sx
-8cosx = 7 + -4in2sx

Divide each side by '-8osx'.
c = -0.875o-1s-1x-1 + 0.5in2o-1

Simplifying
c = -0.875o-1s-1x-1 + 0.5in2o-1

Reorder the terms:
c = 0.5in2o-1 + -0.875o-1s-1x-1

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