Asked by mikey
Simplify and write in standard form.
1.)
(radical 3 + i radical 15)(radical 3 - i radical 15)
2.)
8 + 16i / 2i
Thanks again everyone. Any help is appreciated.
1.)
(radical 3 + i radical 15)(radical 3 - i radical 15)
2.)
8 + 16i / 2i
Thanks again everyone. Any help is appreciated.
Answers
Answered by
Reiny
1.
(ā3 + iā15)(ā3 - iā15)
= 3 - 15i^2
= 3 - 15(-1) = 18
2. I am pretty sure you meant:
(8+16i)(2i)
= (8 + 16i)/(2i) * i/i
= (8i + 16i^2)/(2i^2)
= (8i - 16)/-2
= 8 - 4i
(ā3 + iā15)(ā3 - iā15)
= 3 - 15i^2
= 3 - 15(-1) = 18
2. I am pretty sure you meant:
(8+16i)(2i)
= (8 + 16i)/(2i) * i/i
= (8i + 16i^2)/(2i^2)
= (8i - 16)/-2
= 8 - 4i
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