Math help please
Given 15/(2 +5i) simplify so that there is no i on the bottom. Where i = square root of -1.
October 30, 2010
Math help please
Given 15/(2 +5i) simplify so that there is no i on the bottom. Where i = square root of -1.
2 Comments • Newest first
[quote=jellyfish48]@mrsaigon If you want to be specific, just do this on your calculator >_>
(15)[(2^-1)(5((-1)^1/2)^-1)]
gg[/quote]
You do know that 5i = math error. Because square root of -1 is not possible =/
[quote=jellyfish48][ (15)((2+5i)^-1) ]
If your teacher calls you wrong, call him/her wrong because there are no longer i's in the denominator[/quote]
Thats wrong because that isn't fully simplified because you always want a positive exponent which will put that i in the denominator once again.