SOLUTION: HI. This expression is suppose to wrote in a + bi form. I am having some trouble solving it. It's 5i^3/2(square root -4). Thank you very much.

SOLUTION: HI. This expression is suppose to wrote in a + bi form. I am having some trouble solving it. It's 5i^3/2(square root -4). Thank you very much.

Algebra.Com

Question 203358This question is from textbook Intermediate Algebra
: HI. This expression is suppose to wrote in a + bi form. I am having some trouble solving it. It's 5i^3/2(square root -4). Thank you very much. This question is from textbook Intermediate Algebra

Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
5i^3/2(square root -4).
:

:
i^3 = i^2 * i; i^2 = -1, therefore -1*i = -i
we have

;
Extract Square root of neg 1 from the denominator

:

:

Cancel i
= -1.25
:
You have to write it: -1.25 + 0i
RELATED QUESTIONS
Hi. I am having trouble with this problem: Expressed in a + bi form, 5/ 3 + i is... (answered by nerdybill)

Hi i am having trouble with some of my trigonometry problems i dont get it at all it is... (answered by stanbon)

I am having trouble with some problems. I do not know how to enter a square root symbol... (answered by stanbon,MathTherapy)

I am having trouble with this equation: 5/ (3 + i) is equivalent to what in a + bi... (answered by nerdybill)

I am having trouble completely solving this square root problem. I know the part... (answered by htmentor)

Hi! I am having trouble with the problem: Expressed in a + bi form, 5/3 + i is... (answered by Earlsdon,RAY100)

3+5i........5-5i 4-5i ------ and ---- + ---- 9-2i........1+5i 1+5i I have been... (answered by ankor@dixie-net.com)

hi, i am having trouble solving these , would you be so kind to explain how to determine... (answered by stanbon,advanced_Learner)

HI! May I get some help with this expression? Evaluate the expression and write the... (answered by jim_thompson5910)