beweisen 1/(cos(x))=sec(x)

Lösung

beweisen

\frac{1}{cos ( x )} = sec (x)

Wahr

Schritte zur Lösung

\frac{1}{cos ( x )} = sec (x)

Verwende die grundlegende trigonometrische Identität:

\frac{1}{cos ( x )} = sec (x)

\Rightarrow Wahr

p ro v e \frac{1}{1 + cos ( θ )} + \frac{1}{1 - cos ( θ )} = 2 csc^{2} (θ)

p ro v e sin (a + b) - sin (a - b) = 2 cos (a) sin (b)

p ro v e sin (2 π - x) = - sin (x)

p ro v e sin^{2} (a) + sin^{2} (a) tan^{2} (a) = tan^{2} (a)

p ro v e sin (b) + cos (b) cot (b) = csc (b)