sin(7x-15)=cos(3x+5)

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Solution for sin(7x-15)=cos(3x+5) equation:


Simplifying
sin(7x + -15) = cos(3x + 5)

Reorder the terms:
ins(-15 + 7x) = cos(3x + 5)
(-15 * ins + 7x * ins) = cos(3x + 5)
(-15ins + 7insx) = cos(3x + 5)

Reorder the terms:
-15ins + 7insx = cos(5 + 3x)
-15ins + 7insx = (5 * cos + 3x * cos)
-15ins + 7insx = (5cos + 3cosx)

Solving
-15ins + 7insx = 5cos + 3cosx

Solving for variable 'i'.

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

Reorder the terms:
-5cos + -3cosx + -15ins + 7insx = 5cos + 3cosx + -5cos + -3cosx

Reorder the terms:
-5cos + -3cosx + -15ins + 7insx = 5cos + -5cos + 3cosx + -3cosx

Combine like terms: 5cos + -5cos = 0
-5cos + -3cosx + -15ins + 7insx = 0 + 3cosx + -3cosx
-5cos + -3cosx + -15ins + 7insx = 3cosx + -3cosx

Combine like terms: 3cosx + -3cosx = 0
-5cos + -3cosx + -15ins + 7insx = 0

Factor out the Greatest Common Factor (GCF), 's'.
s(-5co + -3cox + -15in + 7inx) = 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 '(-5co + -3cox + -15in + 7inx)' equal to zero and attempt to solve: Simplifying -5co + -3cox + -15in + 7inx = 0 Solving -5co + -3cox + -15in + 7inx = 0 Move all terms containing i to the left, all other terms to the right. Add '5co' to each side of the equation. -5co + -3cox + -15in + 5co + 7inx = 0 + 5co Reorder the terms: -5co + 5co + -3cox + -15in + 7inx = 0 + 5co Combine like terms: -5co + 5co = 0 0 + -3cox + -15in + 7inx = 0 + 5co -3cox + -15in + 7inx = 0 + 5co Remove the zero: -3cox + -15in + 7inx = 5co Add '3cox' to each side of the equation. -3cox + -15in + 3cox + 7inx = 5co + 3cox Reorder the terms: -3cox + 3cox + -15in + 7inx = 5co + 3cox Combine like terms: -3cox + 3cox = 0 0 + -15in + 7inx = 5co + 3cox -15in + 7inx = 5co + 3cox 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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