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Beliebt Rechnen >

integral of sec^5(x/2)

Lösung

\int sec^{5} (\frac{x}{2}) d x

Lösung

2 (\frac{sec ^{4} ( \frac{x}{2} ) sin ( \frac{x}{2} )}{4} + \frac{3}{4} (\frac{1}{2} sec (\frac{x}{2}) tan (\frac{x}{2}) + \frac{1}{2} ln tan (\frac{x}{2}) + sec (\frac{x}{2}))) + C

Schritte zur Lösung

\int sec^{5} (\frac{x}{2}) d x

Wende U-Substitution an

= \int sec^{5} (u) \cdot 2 d u

Entferne die Konstante:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 2 \cdot \int sec^{5} (u) d u

Wende integrale Reduktion an

= 2 (\frac{sec ^{4} ( u ) sin ( u )}{4} + \frac{3}{4} \cdot \int sec^{3} (u) d u)

\int sec^{3} (u) d u = \frac{1}{2} sec (u) tan (u) + \frac{1}{2} ln ∣ tan (u) + sec (u) ∣

= 2 (\frac{sec ^{4} ( u ) sin ( u )}{4} + \frac{3}{4} (\frac{1}{2} sec (u) tan (u) + \frac{1}{2} ln ∣ tan (u) + sec (u) ∣))

Setze in

u = \frac{x}{2}

ein

= 2 (\frac{sec ^{4} ( \frac{x}{2} ) sin ( \frac{x}{2} )}{4} + \frac{3}{4} (\frac{1}{2} sec (\frac{x}{2}) tan (\frac{x}{2}) + \frac{1}{2} ln tan (\frac{x}{2}) + sec (\frac{x}{2})))

Füge eine Konstante zur Lösung hinzu

= 2 (\frac{sec ^{4} ( \frac{x}{2} ) sin ( \frac{x}{2} )}{4} + \frac{3}{4} (\frac{1}{2} sec (\frac{x}{2}) tan (\frac{x}{2}) + \frac{1}{2} ln tan (\frac{x}{2}) + sec (\frac{x}{2}))) + C

Graph

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