erweitern cos(3t)U(t-(7pi)/6)

Lösung

erweitern

cos (3 t) U (t - \frac{7 π}{6})

t U cos (3 t) - \frac{7 π U cos ( 3 t )}{6}

Schritte zur Lösung

cos (3 t) U (t - \frac{7 π}{6})

= U cos (3 t) (t - \frac{7 π}{6})

Wende das Distributivgesetz an:

a (b - c) = ab - a c

a = cos (3 t) U, b = t, c = \frac{7 π}{6}

= cos (3 t) U t - cos (3 t) U \frac{7 π}{6}

= t U cos (3 t) - \frac{7 π}{6} U cos (3 t)

Vereinfache

t U cos (3 t) - \frac{7 π}{6} U cos (3 t) : t U cos (3 t) - \frac{7 π U cos ( 3 t )}{6}

= t U cos (3 t) - \frac{7 π U cos ( 3 t )}{6}

e x p an d \frac{x ^{2} + 9}{( x + 9 ) ^{2}}

\frac{d}{d x} (3 + (\frac{2}{m ( x + 2 )}))

\frac{\partial}{\partial y} ((z) (x^{2} y^{4} z + z^{2}))

e x p an d (x e^{- x} + 1) e^{x}

e x p an d \frac{8 ( 2 ln ( 2 ) - 1 )}{e ^{4}}