If `z=x+i y` , then he equation `|(2z-i)/(z+1)|=m` represents a circle, then `m` can be (a)`1/2` b. `1` c. `2` d. `3

The solution of the equation |z| -z = 1 + 2i is

If z=i log(2-sqrt3), then cosz = a.-1 b. (-1)/2 c. 1 d. 2

If z_(1)=3-4i , z_(2)=2+i find bar(((z_(2))/(z_(1)))

Consider the lines L_1:(x-1)/2=y/(-1)=(z+3)/1,L_2:(x-4)/1=(y+3)/1=(z+3)/2 and the planes P_1:7x+y+2z=3,P_2:3x+5y-6z=4. Let a x+b y+c z=d be the equation of the plane passing through the point match Column I with Column II. Column I, Column II a= , p. 13 b= , q. -3 c= , r. 1 d= , s. -2

If z_(1)=3-4i , z_(2)=2+i find bar(z_(1)z_(2))

If z = (1)/((2 + 3i)^(2)) then |z| =

The system of equations x +2y+3z=1, x-y+4z=0, 2x+y+7z=1 has

If z_(1)=3-4i , z_(2)=2+i find bar(((z_(1))/(z_(2)))