Derivative help pls!!!?

Question

1. Differentiate

((3/y^2)-(5/y^4))(2y+7y^3)

2.Find an equation of the tangent line curve y=2sinx+3sin^(2) x at point 0,0

3. Where is the function f(x)= |x+6| not differentiable?

4. Differentiate y=cscx(cotx+x) (I cant make the greek letter for angles so i wrote x)

I will appreciate it soo much!

Answer 1

I'd love to help you but I took Football Math in high school. It's the lowest form of Math just to keep the good football player on the team