Question

Which logarithmic equation is equivalent to the exponential equation below? 67.21=e^a

Answer 1

$67.21=e^a\qquad \ln\text{of both sides}\\\\\ln67.21=\ln e^a\qquad\text{use}\ \log_aa^n=n\\\\\ln67.21=a\\\\\boxed{a=\ln67.21}$

Answer 2

Answer: in 67.21=a

Step-by-step explanation: