erweitern cos(2t)[h(t-pi/2)]

Lösung

erweitern

cos (2 t) [h (t - \frac{π}{2})]

t h cos (2 t) - \frac{πh cos ( 2 t )}{2}

Schritte zur Lösung

cos (2 t) (h (t - \frac{π}{2}))

Entferne die Klammern:

(a) = a

= cos (2 t) h (t - \frac{π}{2})

= h cos (2 t) (t - \frac{π}{2})

Wende das Distributivgesetz an:

a (b - c) = ab - a c

a = cos (2 t) h, b = t, c = \frac{π}{2}

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

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

\frac{π}{2} h cos (2 t) = \frac{πh cos ( 2 t )}{2}

= t h cos (2 t) - \frac{πh cos ( 2 t )}{2}

e x p an d 2 x y d x + (x^{2} - y) d y

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

e x p an d (200 - e) \cdot 50

e x p an d \frac{9}{( x + 1 ) ^{2}}

e x p an d \frac{c x + k}{( x - p ) ^{2}}