with a few problems from my suggested assignments.

I'm taking a calculus class, which at this point is looking like a mistake, as my algebra skills are shaky at best.

is the first problem I'm having issues with.

I believe I'm correct up to where I've gotten but can't be sure. This is what I have towards the answer so far:

1(1-x^2)^1/2+1/2*(1-x^2)^-1/2*(x)*(-2x)

That is what I have come to by using the product rule.

Any help would be greatly appreciated!