What is expand cos(4t)U(t-(7pi)/4) ?

The solution to expand cos(4t)U(t-(7pi)/4) is tUcos(4t)-(7piUcos(4t))/4

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expand cos(4t)U(t-(7pi)/4)

expand

cos (4 t) U (t - \frac{7 π}{4})

t U cos (4 t) - \frac{7 π U cos ( 4 t )}{4}

Solution steps

cos (4 t) U (t - \frac{7 π}{4})

= U cos (4 t) (t - \frac{7 π}{4})

Apply the distributive law:

a (b - c) = ab - a c

a = cos (4 t) U, b = t, c = \frac{7 π}{4}

= cos (4 t) U t - cos (4 t) U \frac{7 π}{4}

= t U cos (4 t) - \frac{7 π}{4} U cos (4 t)

Simplify

t U cos (4 t) - \frac{7 π}{4} U cos (4 t) : t U cos (4 t) - \frac{7 π U cos ( 4 t )}{4}

= t U cos (4 t) - \frac{7 π U cos ( 4 t )}{4}

\frac{1}{z ( 2 z + 1 ) ^{2}}

a (- 1, - 2)

L (sin (t) + cos (t)) 2 (s)

- \frac{w ^{2} + 5 w + 14}{9 ( w - 2 )}

(x^{2} - y^{2}) d x + (x^{2} - 2 y) d y

What is expand cos(4t)U(t-(7pi)/4) ?
The solution to expand cos(4t)U(t-(7pi)/4) is tUcos(4t)-(7piUcos(4t))/4