Recent content by Ping427

Thank you for helping!

Can I do (−1+2)/x^2 ≤ sin(x)/x^2+2 ≤(1+2)/x^2, then integrate 1/x^2 and 3/x^2 from 2 to ∞? Then the answer will be 1/2 ≤ ∫(sin(x)+2)/x^2 ≤ 3/2, therefore, it will be converge?

Homework Statement ∫(sin(x)+2)/x^2 from 2 to infinity. Determine if this improper integral converge or diverge.2. The attempt at a solution lim(x→infinity)=∫(sin(x)+2)/x^2 from 2 to t. I know that if the integral ends up to be an infinite number, this will be converge otherwise, it will be...

Thank you for telling me!:smile:

So they just place a angle there to trick me?

This is what I did, but it looks wrong to me

Can anyone help me with this question! I know to solve this problem, you have to set ΣF and ΣM =0, but what do you do with angle? (It's P.31 in the bottom)