sin^2x+8sin^2x-20=0

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Solution for sin^2x+8sin^2x-20=0 equation: 


Simplifying
sin2x + 8sin2x + -20 = 0

Reorder the terms:
-20 + in2sx + 8in2sx = 0

Combine like terms: in2sx + 8in2sx = 9in2sx
-20 + 9in2sx = 0

Solving
-20 + 9in2sx = 0

Solving for variable 'i'.

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

Add '20' to each side of the equation.
-20 + 20 + 9in2sx = 0 + 20

Combine like terms: -20 + 20 = 0
0 + 9in2sx = 0 + 20
9in2sx = 0 + 20

Combine like terms: 0 + 20 = 20
9in2sx = 20

Divide each side by '9n2sx'.
i = 2.222222222n-2s-1x-1

Simplifying
i = 2.222222222n-2s-1x-1

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