The first 7 (a to g) are numerical and can be done on your calculator using the ln key and the ex (or inv ln) key.

a
b
c
d
e
f
g
ln 323
ln 0.00310
ln (-1)
ln e3
e7.28
e-2.31
eln 8.02
5.78
-5.78
undefined
3
1.45X103
0.0993
8.02

(d) and (g) above, you should be able to do in your head without a calculator if you really understand logarithms.

If you still have difficulty with this material you are STRONGLY urged to use the tutorial Logarithms.

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