What is expand cos(2)(t+pi-pi/2) ?

The solution to expand cos(2)(t+pi-pi/2) is cos(2)t+picos(2)-pi/2 cos(2)

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expand cos(2)(t+pi-pi/2)

expand

cos (2) (t + π - \frac{π}{2})

cos (2) t + π cos (2) - \frac{π}{2} cos (2)

Solution steps

cos (2) (t + π - \frac{π}{2})

Distribute parentheses

= cos (2) t + cos (2) π + cos (2) (- \frac{π}{2})

Apply minus-plus rules

+ (- a) = - a

= cos (2) t + π cos (2) - \frac{π}{2} cos (2)

e^{y} (2 - cos (x)) - e^{(- y)} (2 + cos (x))

\frac{5 x ^{2} + 32 x + 63}{( x + 4 ) ( x ^{2} + 6 x + 13 )}

\frac{x ^{2} + 7}{3 x ( x + 1 ) ( x - 1 )}

\frac{( - 4 a - 3 ) ( a - 1 )}{( a + 3 ) ( 2 a - 29 )}

(1 - cos (θ))^{2} + sin^{2} (θ) d θ

What is expand cos(2)(t+pi-pi/2) ?
The solution to expand cos(2)(t+pi-pi/2) is cos(2)t+picos(2)-pi/2 cos(2)