+0  
 
0
35
1
avatar

Express (30 + 19i)/(4 + 5i) in the form a + bi, where a and b are real numbers.

 Oct 9, 2020
 #1
avatar+10324 
+1

Express (30 + 19i)/(4 + 5i) in the form a + bi, where a and b are real numbers.

 

Hello Guest!

 

\(\frac{30+19i}{4+5i}\cdot \frac{4-5i}{4-5i}\\ =\frac{120-150i+76i+95}{16+25}\\ =\frac{215-74i}{41}\\ \color{blue}=5.244-1.8i \)

laugh  !

 Oct 9, 2020

37 Online Users

avatar