8cos^4(x)+sin^2(x)-7=0

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Solution for 8cos^4(x)+sin^2(x)-7=0 equation:


Simplifying
8cos4(x) + sin2(x) + -7 = 0

Multiply cos4 * x
8cos4x + sin2(x) + -7 = 0

Multiply in2s * x
8cos4x + in2sx + -7 = 0

Reorder the terms:
-7 + 8cos4x + in2sx = 0

Solving
-7 + 8cos4x + in2sx = 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 + 8cos4x + 7 + in2sx = 0 + 7

Reorder the terms:
-7 + 7 + 8cos4x + in2sx = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 8cos4x + in2sx = 0 + 7
8cos4x + in2sx = 0 + 7

Combine like terms: 0 + 7 = 7
8cos4x + in2sx = 7

Add '-1in2sx' to each side of the equation.
8cos4x + in2sx + -1in2sx = 7 + -1in2sx

Combine like terms: in2sx + -1in2sx = 0
8cos4x + 0 = 7 + -1in2sx
8cos4x = 7 + -1in2sx

Divide each side by '8os4x'.
c = 0.875o-1s-4x-1 + -0.125in2o-1s-3

Simplifying
c = 0.875o-1s-4x-1 + -0.125in2o-1s-3

Reorder the terms:
c = -0.125in2o-1s-3 + 0.875o-1s-4x-1

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