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OpenStudy (anonymous):
Simplify the given expression. √-49 over (3+4i)-(2-5i) Answers: 63+7i over 82 -63+7i over 82 7+7i over 2 -7+7i over 2
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OpenStudy (lalaly):
7i / 1+9i 7i-63/ 82
OpenStudy (lalaly):
the second 1
OpenStudy (angela210793):
7i/(1+9i)=7i(1-9i)/(1+9i)*(i-9i)=(7i-63)/82=-63+7i over 82
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