SOLUTION: Express each complex number in the form a + bi
1) {{{ sqrt(-12)-sqrt(-48) }}}
2) {{{ (3-2i)^2 }}}
3) {{{ 1/(4-7i) }}}
4) {{{ (sqrt(3)+2i)/(sqrt(3)-2i) }}}
5) 4(3+4i) - 5i(1+i)
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-> SOLUTION: Express each complex number in the form a + bi
1) {{{ sqrt(-12)-sqrt(-48) }}}
2) {{{ (3-2i)^2 }}}
3) {{{ 1/(4-7i) }}}
4) {{{ (sqrt(3)+2i)/(sqrt(3)-2i) }}}
5) 4(3+4i) - 5i(1+i)
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Question 713376: Express each complex number in the form a + bi
1)
2)
3)
4)
5) 4(3+4i) - 5i(1+i)
6)
Even if you could just answer one question to give me an idea oh how to do the rest, it will be appreciated. They just all seem so different so I put them all up. Thank you! Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Express each complex number in the form a + bi
1)
No i term.
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2)
Use FOIL as usual
=
=
= 5 - 12i
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3)
Multiply NUM and DEN by the conjugate of the DEN (4+7i)
=
=
Same as #3
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5) 4(3+4i) - 5i(1+i)
Simple
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6)
=
=
= -i
