Question

if the conjugate of (x+iy)(1-2i) be 1+i then x and y equal to​

Answer 1

Answer:

Step-by-step explanation:

Conjugate of (x+iy)(1−2i) is equal to  (x−iy)(1+2i)

⇒(x−iy)(1+2i)=1+i

⇒x−iy=  

1+2i

1+i

​  

 

⇒x−iy=  

5

(1+i)(1−2i)

​  

 

⇒x−iy=  

5

3−i

​  

 

Comparing real and imaginary parts ;

⇒x=  

5

3

​  

,y=  

5

1

​

Answer 2

x =3/5 and y=1/5 answer