Question

abi=3a-b+12i , find a & b​

Answer 1

Answer:

A b i take it as

3a - b + 12i

3x - x + 12x

14x

x = 14 a= 14

b = 14

Answer 2

Step 1:

Given Data:  ab i=3a-b+12 i

To calculate the value of a and b:

ab i= 3a-b+12 i

Step 2:

Comparing on both sides then we get:

ab=12 and 3a-b=0

Step 3:

3a-b=0

3a=b

a=b/3------------------------------------- (1)

Substitute the equation(1) we get :

b/3 x b=12

$b^2$=36

b=√36

b=±6

Step 4:

Substitute when b=6 then  

a=b/3

a=6/3

a=2

Substitute when b= -6 then  

a=b/3

a= -6/3

a= -2