Question

Simplify the given expression.
7/10i

Answer 1

Multiply the numerator and denominator of the expression by the conjugate of 10i which is -10i and you should get...-7i/10

Answer 2

\[\frac{(7)(-10i)}{(10i)(-10i)}\]\[\frac{-70i}{-100i^2}\] Since i^2=-1 then -100*-1=100 Thus your simplified answer \[\frac{-70i}{100}\] \[\frac{-7i}{10}\]