What is expand-cos(4)(x+pi/2)-3 ?

The solution to expand-cos(4)(x+pi/2)-3 is -cos(4)x-pi/2 cos(4)-3

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expand-cos(4)(x+pi/2)-3

expand

- cos (4) (x + \frac{π}{2}) - 3

- cos (4) x - \frac{π}{2} cos (4) - 3

Solution steps

- cos (4) (x + \frac{π}{2}) - 3

Expand

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

= - cos (4) x - \frac{π}{2} cos (4) - 3

(1 - 1 + x) \cdot (x)

7 x^{3} δ (x - 2)

(3 + 3 sin (x))^{3}

L^{8} (1 + 3 x) (2 - 6 x^{2} + x^{3})

\frac{2}{s ( s ^{2} + 4 )}

What is expand-cos(4)(x+pi/2)-3 ?
The solution to expand-cos(4)(x+pi/2)-3 is -cos(4)x-pi/2 cos(4)-3