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Grade: 11

                        

if (x+iy)(p+iq)=(x^2+y^2)i,then, a)p=x,q=y b)p=x^2,q=y^2 c)x=p,y=p d)x=-q,y=p

3 years ago

Answers : (2)

Arun
24741 Points
							I
						
3 years ago
Arun
24741 Points
							
On expansion of LHS
(xp-yq) + (xq+yp)i = (x^2+y^2)i
On comparing real parts
x = yq/p
In comparison of imaginary parts
xq+ yp = x^2+y^2
Put tge value of x = yq/p
y = p
Hence x = q
3 years ago
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