Question

Use the multiplication law for logarithms to simplify the following expression.

log20(5) + log20(4)

20 points avaliable

Answer 1

Answer: 1

Explanation:

remember logx(a)+logx(b)=logx(a×b)

∴ log20(5)+log20(4)

=log20(5×4)

=log20(20)

=1