+0  
 
0
76
1
avatar

A. Explain in your own words the value of “i” and the value of i². (short answers please)

 

B. Copy the problem carefully and show all the steps needed to arrive at the final simplified answer. You must show all your work.

 

C. Write your final, simplified expression in standard complex number form for Jamal.

Guest Oct 6, 2018

Best Answer 

 #1
avatar+3231 
+1

\(i \text{ is the value such that }i^2 = -1 \\ \text{you'll often see it written that }i=\sqrt{-1} \\ \text{but this is a bit of abuse of notation}\)

 

\((7-3i)(5i+4)-(3-i) = \\ 35i+28-15i^2-12i - (3-i) = \\ 28+15+(35-12)i - (3-i) = \\ 43+23i -3 + i = \\ 40+24i\)

Rom  Oct 6, 2018
 #1
avatar+3231 
+1
Best Answer

\(i \text{ is the value such that }i^2 = -1 \\ \text{you'll often see it written that }i=\sqrt{-1} \\ \text{but this is a bit of abuse of notation}\)

 

\((7-3i)(5i+4)-(3-i) = \\ 35i+28-15i^2-12i - (3-i) = \\ 28+15+(35-12)i - (3-i) = \\ 43+23i -3 + i = \\ 40+24i\)

Rom  Oct 6, 2018

18 Online Users

avatar
avatar
avatar
avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.