Sin(9x+4)=cos(6x+20)

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Solution for Sin(9x+4)=cos(6x+20) equation:


Simplifying
Sin(9x + 4) = cos(6x + 20)

Reorder the terms:
inS(4 + 9x) = cos(6x + 20)
(4 * inS + 9x * inS) = cos(6x + 20)
(4inS + 9inxS) = cos(6x + 20)

Reorder the terms:
4inS + 9inxS = cos(20 + 6x)
4inS + 9inxS = (20 * cos + 6x * cos)
4inS + 9inxS = (20cos + 6cosx)

Solving
4inS + 9inxS = 20cos + 6cosx

Solving for variable 'i'.

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

Reorder the terms:
-20cos + -6cosx + 4inS + 9inxS = 20cos + 6cosx + -20cos + -6cosx

Reorder the terms:
-20cos + -6cosx + 4inS + 9inxS = 20cos + -20cos + 6cosx + -6cosx

Combine like terms: 20cos + -20cos = 0
-20cos + -6cosx + 4inS + 9inxS = 0 + 6cosx + -6cosx
-20cos + -6cosx + 4inS + 9inxS = 6cosx + -6cosx

Combine like terms: 6cosx + -6cosx = 0
-20cos + -6cosx + 4inS + 9inxS = 0

The solution to this equation could not be determined.

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