Infinity

Use the Comparison Test to determine for what values of p the integral 2 to infinity of 1 all over x raised to p times the ln(x) dx converges.

Let S be (−∞,3]∪[15,∞) Then S can also be described in set notation by the inequality |x−a|≥b   a=? b=?

Since zero already ended wouldn't never end? Into consideration shouldn't a new factor come into play?

limx-->positive infinity tan ( x/x^2+1)    limx--> negative infinity cot ( pix/4x+1)    This is so confusing for me, i would lice a detailed step by step. 

what will be infinity over infinity .will it be infinity,  

How do I solve this? The sine is really confusing me

Find the horizontal limit(s) of the following function:   f(x)= (9x^3-8x^2-8x)/(7-8x-7x^3)   I know that one of the horizontal limits is the -9/7, but I'm still missing one and can't find it,... more

I understand that as x approaches (+) infinity, e^x = infinity. I also understand that as x approaches (-) infinity, e^x = 0.  The graph makes sense. So, as x approaches (-) infinity, -e^x =... more