Apply the quotient rule to differentiate the following.Use the rule:
f(x)/g(x) y=f’(x)•g(x)-f(x)•g’(x)/[g(x)]^2.

b) R(w)= 3w+w^4/2w^2+1
c) g(t)= t^2+3t+2/t+2
d) f(x)= square root of x + 2x/7x-4x^2