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If (a+b)-i(3a+2b)=5+2i , then find a and...

If `(a+b)-i(3a+2b)=5+2i ,` then find `a and b`

A

`a=12,b=-17`

B

`a=-12,b=-17`

C

`a=12,b=17`

D

`a=-12,b=17`

Text Solution

Verified by Experts

The correct Answer is:
D
We have,
`(a+b) -i(3a + 2b) + 5+2i`
`rArr a+b= 5 and - (3a + 2b) = 2`
`rArr a =- 12,b= 17`
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