SOLUTION: Hi I need help with this problem. 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 th

Question 258805: Hi I need help with this problem.
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)
Thanks

Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
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:

Successive powers of i can be simplified
we know that

and

so we have

-8i
:

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