Calculus Section 2.6 [ATTACH=full]3210[/ATTACH]

I am curious about the remaining trigonometric functions of x in this case. What about the same question for cos x, tan x, csc x, sec x, and cot x? What about the same question applied to all 5 remaining trigonometric functions of x as x tends to negative infinity?

Understood. I posted Limits at Infinity 6 through 10. I also posted some absolute value questions in the Algebra forum here. I may or may not post a few proof questions today. Let me think about it.