vereinfachen (cos(a)-1)(cos(a)+1)

Lösung

vereinfachen

(cos (a) - 1) (cos (a) + 1)

- sin^{2} (a)

Schritte zur Lösung

(cos (a) - 1) (cos (a) + 1)

Multipliziere aus

(cos (a) + 1) (cos (a) - 1) : cos^{2} (a) - 1

= cos^{2} (a) - 1

Verwende die Pythagoreische Identität:

1 = cos^{2} (a) + sin^{2} (a)

1 - cos^{2} (a) = sin^{2} (a)

= - sin^{2} (a)

s im pl i f y (x - 4) (x - 6 + 7) (x - 6 - 7)

e x p an d \frac{π ( - 3 + 2 )}{12}

e x p an d (1 + tan (x))^{3} sec^{2} (x)

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

e x p an d (x - 4) \cdot (x + 2)