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OpenStudy (anonymous):
Find the product of the complex number and its conjugate. 1 + 2i
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OpenStudy (aravindg):
You have complex number 1+2i. Conjugate is (1-2i). Can you multiply them and see what itsimplifies to?
OpenStudy (anonymous):
1-4i?
OpenStudy (aravindg):
Can you show how you multiplied them?
OpenStudy (anonymous):
(1+4i) (1-4i) Foiled them so 1-2i 2i-4i =1-4i
OpenStudy (aravindg):
Where did 2i come from?
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OpenStudy (anonymous):
and I meant to put (1+2i)(1-2i) above instead of the (1+4i) (1-4i) oops
OpenStudy (aravindg):
okay the mistake u r making is|dw:1398473535806:dw|
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