## Calculus: Early Transcendentals 8th Edition

a) $0\lt x\lt 1$ b) $x\gt \ln 5$
a) $x\gt 0,$ taking the exponential of both sides: $x\lt e^0=1$ $\therefore 0\lt x\lt 1$ b) taking the logarithms of both sides: $x\gt \ln 5$