What is 9(3-4cos(2x)+cos(4x)) ?

The solution to 9(3-4cos(2x)+cos(4x)) is 27-36cos(2x)+9cos(4x)

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simplify 9(3-4cos(2x)+cos(4x))

simplify

9 (3 - 4 cos (2 x) + cos (4 x))

27 - 36 cos (2 x) + 9 cos (4 x)

Solution steps

9 (3 - 4 cos (2 x) + cos (4 x))

Expand

9 (3 - 4 cos (2 x) + cos (4 x)) : 27 - 36 cos (2 x) + 9 cos (4 x)

= 27 - 36 cos (2 x) + 9 cos (4 x)

\frac{( n - v ) ^{2}}{v}

\frac{π ( e ^{2} + 5 )}{2} - 2 π e

(2 x + y) \cdot (x + \frac{y}{x})^{5}

(x^{- 2})^{2}

\frac{( 3 x - 11 ) ^{2}}{64}

What is 9(3-4cos(2x)+cos(4x)) ?
The solution to 9(3-4cos(2x)+cos(4x)) is 27-36cos(2x)+9cos(4x)