UPSEE Solved Model Paper 6

Given

−

z

= - 4z
⇒ x - iy = - 4 (x + iy)
⇒ x + 4x - iy + 4iy = 0
⇒ 5x + 3iy = 0
⇒ 5x + 3iy = 0 + i 0
⇒ 5x = 0 and 3iy = i 0
⇒ 5x = 0 and 3iy = 0
⇒ x = 0 and y = 0