What is expand cos(t-4)U(t-4) ?

The solution to expand cos(t-4)U(t-4) is tUcos(t-4)-4Ucos(t-4)

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expand cos(t-4)U(t-4)

expand

cos (t - 4) U (t - 4)

t U cos (t - 4) - 4 U cos (t - 4)

Solution steps

cos (t - 4) U (t - 4)

= U cos (t - 4) (t - 4)

Apply the distributive law:

a (b - c) = ab - a c

U cos (t - 4) (t - 4) = U cos (t - 4) t - U cos (t - 4) \cdot 4

= U cos (t - 4) t - U cos (t - 4) \cdot 4

= t U cos (t - 4) - 4 U cos (t - 4)

((9 x + 2) - \frac{8 x}{7 x + 10}) \cdot (x)

x (x - 3)

(1 - 0.8 cos (x))^{2}

[(3 + \frac{2}{x}) x^{2}]

(cos (x) + 1)^{2} + sin^{2} (x)

What is expand cos(t-4)U(t-4) ?
The solution to expand cos(t-4)U(t-4) is tUcos(t-4)-4Ucos(t-4)