Sin(11x)+sin(7x)=2sin(9x)

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Solution for Sin(11x)+sin(7x)=2sin(9x) equation:


Simplifying
Sin(11x) + sin(7x) = 2sin(9x)

Remove parenthesis around (11x)
inS * 11x + sin(7x) = 2sin(9x)

Reorder the terms for easier multiplication:
11inS * x + sin(7x) = 2sin(9x)

Multiply inS * x
11inxS + sin(7x) = 2sin(9x)

Remove parenthesis around (7x)
11inxS + ins * 7x = 2sin(9x)

Reorder the terms for easier multiplication:
11inxS + 7ins * x = 2sin(9x)

Multiply ins * x
11inxS + 7insx = 2sin(9x)

Reorder the terms:
7insx + 11inxS = 2sin(9x)

Remove parenthesis around (9x)
7insx + 11inxS = 2ins * 9x

Reorder the terms for easier multiplication:
7insx + 11inxS = 2 * 9ins * x

Multiply 2 * 9
7insx + 11inxS = 18ins * x

Multiply ins * x
7insx + 11inxS = 18insx

Solving
7insx + 11inxS = 18insx

Solving for variable 'i'.

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

Add '-18insx' to each side of the equation.
7insx + -18insx + 11inxS = 18insx + -18insx

Combine like terms: 7insx + -18insx = -11insx
-11insx + 11inxS = 18insx + -18insx

Combine like terms: 18insx + -18insx = 0
-11insx + 11inxS = 0

Factor out the Greatest Common Factor (GCF), '11inx'.
11inx(-1s + S) = 0

Ignore the factor 11.

Subproblem 1

Set the factor 'inx' equal to zero and attempt to solve: Simplifying inx = 0 Solving inx = 0 Move all terms containing i to the left, all other terms to the right. Simplifying inx = 0 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 '(-1s + S)' equal to zero and attempt to solve: Simplifying -1s + S = 0 Reorder the terms: S + -1s = 0 Solving S + -1s = 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 + -1s = 0 + -1S Combine like terms: S + -1S = 0 0 + -1s = 0 + -1S -1s = 0 + -1S Remove the zero: -1s = -1S Add 's' to each side of the equation. -1s + s = -1S + s Combine like terms: -1s + s = 0 0 = -1S + s Simplifying 0 = -1S + s 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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