- #1
Alexstre
- 19
- 0
Hello!
I've been solving a few of these problems but I'm stuck on this one, trying to simplify one of the steps.
Homework Statement
Find dy/dx of: y = x(x^2 +1)^1/2
Attempt at a solution
y1 = x (1/2)(x^2 + 1)^-1/2 * (2x) + (x^2 +1)^1/2 * 1
I get the the equation above but I have no clue how to simply it. I check the answer manual and found that the next step should be:
(x^2+1)^-1/2 * (x^2+x^2+1)
With that, I can simplify and solve the problem, I just don't know how to get there from my equation.
Could anyone point me in the right direction?
Thanks
I've been solving a few of these problems but I'm stuck on this one, trying to simplify one of the steps.
Homework Statement
Find dy/dx of: y = x(x^2 +1)^1/2
Attempt at a solution
y1 = x (1/2)(x^2 + 1)^-1/2 * (2x) + (x^2 +1)^1/2 * 1
I get the the equation above but I have no clue how to simply it. I check the answer manual and found that the next step should be:
(x^2+1)^-1/2 * (x^2+x^2+1)
With that, I can simplify and solve the problem, I just don't know how to get there from my equation.
Could anyone point me in the right direction?
Thanks