can anyone help me with these math problems?

Question

let r(x)=f(g(h(x))) where h(1)=2 ; g(2)=3 ; h`(1)=4 ; g`(2)=5 ;
f `(3)=6 find r`(1)


differentiate

y=(x)(cos^-1)(x) - sqr root (1-x^2)


really need some help!

Answer 1

no. looks like greek 2 me. i opened this question because i'm pretty good in math. 8th grade taking geometry in fact, but i think that math is way higher than me. sorry.

Answer 2

r´(x) = f´(g(h(x)) *g´(h(x)*h´(x)
for x=1
h´(1)=4
h(1)= 2
g(2)=3
g´(2) = 5
so r´(1) = f´(3)*g´(2)*h´(1) = 6*5*4= 120
2)
=cos^-1(x) +x(-1/sqrt(1-x^2)) +x/sqrt(1-x^2)