could anyone help me with these questions please i have a few answers myslef but dont know if i am going the right way with this or not. im useless at differentiation please be kind lol !!!

Q1, differentiate the following with respect to X

a, Y=squareroot of(x^3+5)

p.s dnt know how to get square root sign on p.c

b, Y=X^3sin2x

c, Y=e^2x /(x+3)

thankyou for your time hopefully some of you are better at this than me lol im sure you are !!!!!:)