What is expand cos(4t)u(t-pi) ?

The solution to expand cos(4t)u(t-pi) is tucos(4t)-piucos(4t)

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expand cos(4t)u(t-pi)

expand

cos (4 t) u (t - π)

t u cos (4 t) - π u cos (4 t)

Solution steps

cos (4 t) u (t - π)

= u cos (4 t) (t - π)

Apply the distributive law:

a (b - c) = ab - a c

a = cos (4 t) u, b = t, c = π

= cos (4 t) u t - cos (4 t) u π

= t u cos (4 t) - π u cos (4 t)

\frac{d}{d y} ((x) (3 x + 5 y))

\frac{\partial}{\partial y} ((y - 1) x^{2}) - 2 y^{2} + 2

\frac{4 ( x + 3 )}{x - 4}

\frac{e ^{t}}{2 ( t ^{2} + 5 t )}

e^{90 (x + y)}

What is expand cos(4t)u(t-pi) ?
The solution to expand cos(4t)u(t-pi) is tucos(4t)-piucos(4t)