1.Let the complex number z=x+iyz = x + iyz=x+iy be such that 2z−3i2z+i\dfrac{2z - 3i}{2z + i}2z+i2z−3i is purely imaginary. If x+y2=0x + y^2 = 0x+y2=0, then y4+y2−yy^4 + y^2 - yy4+y2−y is equal to:a.23\dfrac{2}{3}32b.32\dfrac{3}{2}23c.34\dfrac{3}{4}43d.43\dfrac{4}{3}34Login to continueOnly logged in users canattempt or see the solution.
