Question 258805
Simplify the complex expression by multiplying.
i to the 7th power and then in ( ) is 56 over 7i to the 4th. 
(It's 7i to the 4th power on the bottom of the fraction in parentheses
:
Assume this is the problem:
{{{i^7(56/(7i^4))}}}
Successive powers of i can be simplified
we know that 
{{{i^7 = i^3 * i^4 = -i}}}
and
{{{i^4 = i^2 * i^2 = 1}}}
so we have
{{{-i(56/(7(1)))}}}
-8i
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