erweitern cos(a)(sec(a)-cos(a)=sin^2(a))

Lösung

erweitern

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

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

Schritte zur Lösung

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

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

Wende das Distributivgesetz an:

a (b - c) = ab - a c

a = cos (a), b = sec (a), c = cos (a) = sin^{2} (a)

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

Multipliziere aus

cos (a) sec (a) - cos (a) cos (a) : cos (a) sec (a) - cos^{2} (a)

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

e x p an d 60

e x p an d - 2 (a + 6) (a + 7)^{'}

e x p an d \frac{x ( 3 x + 4 )}{( 9 x + 4 )}

e x p an d \frac{x ^{4} - x ^{3} - 20 x ^{2}}{( x + 2 ) ( x ^{4} - 16 )}

e x p an d (x^{3} - y) d x + x d y