[" If "(x+iy)(2+cis theta)=3" then "],[x^(2)+x^(2)-4x+3=]

If (x+iy)(2+cis theta)=3 then x^(2)+y^(2)-4x+3=

If (1 + cos theta - isin theta) ( 1+ cos 2 theta + isin 2 theta) = x +iy then x^(2) + y^(2) =

If 2y cos theta =x sin theta and 2x sec theta -y cosec theta =3, then x ^(2) +4y^(2)=

If 2y cos theta =x sin theta and 2x sec theta -y cosec theta =3, then x ^(2) +4y^(2)= ............... A) 4 B) -4 C) -2 D) 2

x+iy=1/(1+costheta+isintheta),"then "4x^2=

If (1+cos theta-i sin theta)(1+cos2 theta+i sin2 theta)=x+iy then x^(2)+y^(2)=

If x +iy = (3)/(2 + cos theta + isin theta) , show that x^(2) + y^(2) = 4x - 3