Iv) Express the complex number I/1+i in to polar form.​

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this

so mark-up is 0.4 multiplied by 180 = 72