What is expand cos(1/4)(-x-2pi) ?

The solution to expand cos(1/4)(-x-2pi) is -cos(1/4)x-2picos(1/4)

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expand cos(1/4)(-x-2pi)

expand

cos (\frac{1}{4}) (- x - 2 π)

- cos (\frac{1}{4}) x - 2 π cos (\frac{1}{4})

Solution steps

cos (\frac{1}{4}) (- x - 2 π)

Apply the distributive law:

a (b - c) = ab - a c

a = cos (\frac{1}{4}), b = - x, c = 2 π

= cos (\frac{1}{4}) (- x) - cos (\frac{1}{4}) \cdot 2 π

Apply minus-plus rules

+ (- a) = - a

= - cos (\frac{1}{4}) x - 2 π cos (\frac{1}{4})

, (8 x^{2} - 7 x + 8) - (4 x^{2} - 3 x + 3)

(x - \frac{π}{6})^{3}

\frac{1}{30} (e^{8 x} + 8 e^{8 x} x)

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

x (2 x - 7 = 1)

What is expand cos(1/4)(-x-2pi) ?
The solution to expand cos(1/4)(-x-2pi) is -cos(1/4)x-2picos(1/4)