Answer
a) $\log_5{10}\approx1.430677$
b) $\log_3{57}\approx3.680143$
Work Step by Step
a) $\log_5{10}=\frac{\ln10}{\ln5}\approx1.430677$
b) $\log_3{57}=\frac{\ln{57}}{\ln3}\approx3.680143$
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