SOLUTION: how do you get the quotient for -9/i in the form a + bi and how do you get the quotient for 9+3i _

Algebra.Com
Question 267876: how do you get the quotient for -9/i in the form a + bi
and
how do you get the quotient for

9+3i
_____
4 -8i
Found 3 solutions by stanbon, Alan3354, josmiceli:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
how do you get the quotient for
-9/i in the form a + bi
----
Multiply numerator and denominator by "i" to get:
-9i/(-1)
= 9i
= 0+9i
-------------------
and
how do you get the quotient for
(9+3i)/(4 -8i)
---
Multiply numerator and denominator by 4+8i to get:
[(4+8i)(9+3i)]/[16+64]
---
= [36-24+72i+12i]/80
-----
= [12+84i]/80
Reduce to get:
= [3 + 21i]/20
==================
Cheers,
Stan H.

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
how do you get the quotient for -9/i in the form a + bi
Multiply NUM and DEN by i
= -9i/i^2
= 9i
It is in a + bi form, a = 0
--------------------------
how do you get the quotient for
9+3i
_____
4 -8i
------------
Multiply NUM and DEN by the conjugate of the DEN 4+8i
= (9+3i)*(4+8i)/(16+64)
= (12 + 84i)/80
= (3+21i)/20
or (3/20)*(1+7i)

Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!

Multiply top and bottom by




answer
----------------

Multiply top and bottom by






RELATED QUESTIONS

How do you rewrite each quotient in the form a+bi?

  2
-----
 3+i... (answered by Edwin McCravy)

How do I go about solving this problem? Simplify the following quotient of complex... (answered by Alan3354)

How do I solve this question:

Write the quotient in the standard form a+bi.
6/5-i


 (answered by jim_thompson5910)

How do I write the product/quotient in standard form for these problems 1+3i/2i and... (answered by Alan3354)

Write the quotient in the form a + bi

6+2i
_____... (answered by Fombitz)

Simplify the following quotient of complex numbers into the form a + bi. 
-7+6i/9+6i... (answered by geetha_rama)

Simplify the following quotient of complex numbers into the form a + bi. 
-9 + 8i... (answered by robertb)

Simplify the following quotient of complex numbers into the form a + bi. 
-9 + 8i... (answered by Fombitz)

simplify the following quotient of complex numbers into the form a+bi: (... (answered by ankor@dixie-net.com)