sin(360-x)cos(180+x)=-1

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Solution for sin(360-x)cos(180+x)=-1 equation:


Simplifying
sin(360 + -1x) * cos(180 + x) = -1

Reorder the terms for easier multiplication:
ins * cos(360 + -1x)(180 + x) = -1

Multiply ins * cos
cinos2(360 + -1x)(180 + x) = -1

Multiply (360 + -1x) * (180 + x)
cinos2(360(180 + x) + -1x * (180 + x)) = -1
cinos2((180 * 360 + x * 360) + -1x * (180 + x)) = -1
cinos2((64800 + 360x) + -1x * (180 + x)) = -1
cinos2(64800 + 360x + (180 * -1x + x * -1x)) = -1
cinos2(64800 + 360x + (-180x + -1x2)) = -1

Combine like terms: 360x + -180x = 180x
cinos2(64800 + 180x + -1x2) = -1
(64800 * cinos2 + 180x * cinos2 + -1x2 * cinos2) = -1
(64800cinos2 + 180cinos2x + -1cinos2x2) = -1

Solving
64800cinos2 + 180cinos2x + -1cinos2x2 = -1

Solving for variable 'c'.

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

Reorder the terms:
1 + 64800cinos2 + 180cinos2x + -1cinos2x2 = -1 + 1

Combine like terms: -1 + 1 = 0
1 + 64800cinos2 + 180cinos2x + -1cinos2x2 = 0

The solution to this equation could not be determined.

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