document.write( "Question 258805: Hi I need help with this problem.\r
\n" ); document.write( "\n" ); document.write( "Simplify the complex expression by multiplying.\r
\n" ); document.write( "\n" ); document.write( "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)\r
\n" ); document.write( "\n" ); document.write( "Thanks \r
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Algebra.Com's Answer #190675 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Simplify the complex expression by multiplying.
\n" ); document.write( "i to the 7th power and then in ( ) is 56 over 7i to the 4th.
\n" ); document.write( "(It's 7i to the 4th power on the bottom of the fraction in parentheses
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\n" ); document.write( "Assume this is the problem:
\n" ); document.write( "\"i%5E7%2856%2F%287i%5E4%29%29\"
\n" ); document.write( "Successive powers of i can be simplified
\n" ); document.write( "we know that
\n" ); document.write( "\"i%5E7+=+i%5E3+%2A+i%5E4+=+-i\"
\n" ); document.write( "and
\n" ); document.write( "\"i%5E4+=+i%5E2+%2A+i%5E2+=+1\"
\n" ); document.write( "so we have
\n" ); document.write( "\"-i%2856%2F%287%281%29%29%29\"
\n" ); document.write( "-8i
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