beweisen (sin(x))^2+(cos(x))^2=1

Lösung

beweisen

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

Wahr

Schritte zur Lösung

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

Verwende die Pythagoreische Identität:

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

\Rightarrow Wahr

p ro v e 1 - 2 cos^{2} (x) + cos^{4} (x) = sin^{4} (x)

p ro v e sec (x) - \frac{cos ( x )}{1 + sin ( x )} = tan (x)

p ro v e sin (θ) (csc (θ) - sin (θ)) = cos^{2} (θ)

p ro v e sec (y) cos (y) = 1

p ro v e csc (x) - sin (x) = cos (x) \cdot cot (x)