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Beliebt Rechnen >

integral of (1+sin(2x))/(cos^2(x))

Lösung

\int \frac{1 + sin ( 2 x )}{cos ^{2} ( x )} d x

Lösung

tan (x) - ln (cos^{2} (x)) + C

Schritte zur Lösung

\int \frac{1 + sin ( 2 x )}{cos ^{2} ( x )} d x

Multipliziere aus

\frac{1 + sin ( 2 x )}{cos ^{2} ( x )} : \frac{1}{cos ^{2} ( x )} + \frac{sin ( 2 x )}{cos ^{2} ( x )}

= \int \frac{1}{cos ^{2} ( x )} + \frac{sin ( 2 x )}{cos ^{2} ( x )} d x

Wende die Summenregel an:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= \int \frac{1}{cos ^{2} ( x )} d x + \int \frac{sin ( 2 x )}{cos ^{2} ( x )} d x

\int \frac{1}{cos ^{2} ( x )} d x = tan (x)

\int \frac{sin ( 2 x )}{cos ^{2} ( x )} d x = - ln (cos^{2} (x))

= tan (x) - ln (cos^{2} (x))

Füge eine Konstante zur Lösung hinzu

= tan (x) - ln (cos^{2} (x)) + C

Graph

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