dsolve sin x -(x/2) raise to the power of 2 , using newton raphson method for x = 1.5

Question

Newton raphson method is a method popularly used @ iteration scheme and was developed by newton and later modified by Raphson and it is also called newton method.

Answer 1

?????????????? sine(x)=(x/2)^2 ???????????

or (x/2)^2 -sine(x)=0 ??????????

or x^2-4*sine(x)=0

x=0 be 1 anser

or 1.933754 radians...110.795943 deg