7.5^{3r}=2.6

Lösung

7. 5^{3 r} = 2.6

r = \frac{ln ( 2.6 )}{3 ln ( 7.5 )}

Dezimale

r = 0.15807 \dots

Schritte zur Lösung

7. 5^{3 r} = 2.6

Wende Exponentenregel an

3 r ln (7.5) = ln (2.6)

Löse

3 r ln (7.5) = ln (2.6) : r = \frac{ln ( 2.6 )}{3 ln ( 7.5 )}

r = \frac{ln ( 2.6 )}{3 ln ( 7.5 )}

4^{x} - 3 \cdot 2^{x} + 2 = 0

e^{x} + 1 = 6 e^{- x}

\frac{3 2}{8} = 2^{m}

254 = 2^{x}

e^{0.05 t} = 3