erweitern (tan(x)+1)(tan(x)-7)

Lösung

erweitern

(tan (x) + 1) (tan (x) - 7)

tan^{2} (x) - 6 tan (x) - 7

Schritte zur Lösung

(tan (x) + 1) (tan (x) - 7)

Apply FOIL method

(tan (x) + 1) (tan (x) - 7) : tan^{2} (x) - 6 tan (x) - 7

= tan^{2} (x) - 6 tan (x) - 7

e x p an d \frac{s ^{3} - 7 s ^{2} + 10 s + 30}{s ( s - 4 ) ( s - 3 ) ( s + 1 )}

s im pl i f y \frac{1}{2} (t + \frac{1}{2} sin (2 t)) - v sin^{2} (t)

e x p an d \frac{tan ( x )}{( x - 5 ) ( x - 3 )}

e x p an d (tan (x) + 1) (tan (x) - 1)

e x p an d (9 cos (x) - cos (9 x) \cdot 9)^{2}