What is 4*(1-(cos(2θ))/2) ?

The solution to 4*(1-(cos(2θ))/2) is 4-2cos(2θ)

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simplify 4*(1-(cos(2θ))/2)

simplify

4 \cdot (1 - \frac{cos ( 2 θ )}{2})

4 - 2 cos (2 θ)

Solution steps

4 (1 - \frac{cos ( 2 θ )}{2})

Join

1 - \frac{cos ( 2 θ )}{2} : \frac{2 - cos ( 2 θ )}{2}

= 4 \cdot \frac{2 - cos ( 2 θ )}{2}

Apply the fraction rule:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{4 ( 2 - cos ( 2 θ ) )}{2}

Divide the numbers:

\frac{4}{2} = 2

= 2 (2 - cos (2 θ))

Expand

2 (2 - cos (2 θ)) : 4 - 2 cos (2 θ)

= 4 - 2 cos (2 θ)

(x - 14)^{2}

\frac{\partial}{\partial t} ((z) (x^{2} y + x y^{2}))

\frac{1}{( 2 n + 1 ) ^{4}}

4 (1 - π)^{4}

(1 + a c) (b e - b d)