sin(3x+20)=-cos(x+10)

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Solution for sin(3x+20)=-cos(x+10) equation:


Simplifying
sin(3x + 20) = -1cos(x + 10)

Reorder the terms:
ins(20 + 3x) = -1cos(x + 10)
(20 * ins + 3x * ins) = -1cos(x + 10)
(20ins + 3insx) = -1cos(x + 10)

Reorder the terms:
20ins + 3insx = -1cos(10 + x)
20ins + 3insx = (10 * -1cos + x * -1cos)
20ins + 3insx = (-10cos + -1cosx)

Solving
20ins + 3insx = -10cos + -1cosx

Solving for variable 'i'.

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

Reorder the terms:
10cos + cosx + 20ins + 3insx = -10cos + -1cosx + 10cos + cosx

Reorder the terms:
10cos + cosx + 20ins + 3insx = -10cos + 10cos + -1cosx + cosx

Combine like terms: -10cos + 10cos = 0
10cos + cosx + 20ins + 3insx = 0 + -1cosx + cosx
10cos + cosx + 20ins + 3insx = -1cosx + cosx

Combine like terms: -1cosx + cosx = 0
10cos + cosx + 20ins + 3insx = 0

Factor out the Greatest Common Factor (GCF), 's'.
s(10co + cox + 20in + 3inx) = 0

Subproblem 1

Set the factor 's' equal to zero and attempt to solve: Simplifying s = 0 Solving s = 0 Move all terms containing i to the left, all other terms to the right. Add '-1s' to each side of the equation. s + -1s = 0 + -1s Remove the zero: 0 = -1s Simplifying 0 = -1s The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(10co + cox + 20in + 3inx)' equal to zero and attempt to solve: Simplifying 10co + cox + 20in + 3inx = 0 Solving 10co + cox + 20in + 3inx = 0 Move all terms containing i to the left, all other terms to the right. Add '-10co' to each side of the equation. 10co + cox + 20in + -10co + 3inx = 0 + -10co Reorder the terms: 10co + -10co + cox + 20in + 3inx = 0 + -10co Combine like terms: 10co + -10co = 0 0 + cox + 20in + 3inx = 0 + -10co cox + 20in + 3inx = 0 + -10co Remove the zero: cox + 20in + 3inx = -10co Add '-1cox' to each side of the equation. cox + 20in + -1cox + 3inx = -10co + -1cox Reorder the terms: cox + -1cox + 20in + 3inx = -10co + -1cox Combine like terms: cox + -1cox = 0 0 + 20in + 3inx = -10co + -1cox 20in + 3inx = -10co + -1cox The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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