If 5a+ib = 15-3i; then find the value of a+b
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4
Answer:
Given that
5a+ ib= 15-3i
separate the real and imaginary parts
5a= 15 1. and ib= -3i 2
Divide 5 on both side 1
5a/5 = 15/5
a= 3
Also
from 2
b= -3
Answered by
2
5a+ib=15-3i
comparing real and imaginary part
5a=15 ; ib=-3i
a=3 ; b=-3
a+b=3-3=0
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