Science and Mathematics for Engineering 6th Edition by John Bird

Exercise 16

Evaluate the following, correct to 4 significant figures:
(a) $3.2 \ln 4.92 - 5 \lg 17.9$
(b) $\frac { 5 \left( 1 - e ^ { - 265 } \right) } { e ^ { 1.73 } }$