Calculus Easy 10 points?

Question

1. Let f(x) = 2/x^2. Then lim x ---> 0 f(x) = 

A. 0 

B. - 2 

C. 2 

D. Does not exist 


2 . Suppose f(x) = x^2 - 16 / x - 4. Find lim x ----> ∞ f(x) = 

A. 4 

B. - 4 

C. 1 

D. 40 


3. Suppose f(x) = 5 + 2x^4 / 2x^4 + 1. Find lim x -----> - ∞ f(x) if it exists. 

A. 5 

B. 5/2 

C. 2 

D. 1

 

 

Answer 1

(1)

So does not exist 

Option (D) is correct

Answer 2

(2)

So none of the options is correct 

Correct answer is ∞

Answer 3

(3)

 

Option (D) is correct