1. ## easy differentiation

i need to differentiate these
1. x√(x_1)
2. 4x/(x^+x+3)^2
3. x/√(x_1)

i need someone to check my answers to these questions
a, 1/3√(x^4)
dy/dx = -1/3*4x^3*(x^4)^-4/3

= -4/3 x^-(5/3)

b, (1-4x)^3/2

and lastly i need help with this question
determine the relationship between the normal to the curve y=y = x^3-2 x at x=1 and x=-1
pleassssse helppppp
thanx

2. Originally Posted by kayla220220
i need to differentiate these
1. x√(x_1)
Do you know the product and chain rules?