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- If a functionfis increasing on (a,b) and decreasing on (b,c) , then what can be said about the local extremum offon (a,c) ?Prove the limit. Using the precise definition of a limit. lim x approaches 1 f(x)=2 if f(x) ={ 4-2x , x<1 and 6x-4 x >=1}Let f(x)={5x+1 x≠4 {1 x=4. What is f(4)? If f(4) does not exist, type: 99999 What is lim x→4f(x)? If the limit does not exist, type: 99999 Is f(x) continuous at x=4
- Sketch the graph of a function g that is continuous on its domain (−5, 5) and where g(0) = 1, g ′(0) = 1, g ′(−2) = 0, lim x→−5+ g(x) = ∞, and lim x→5− g(x) = 3.Evaluate the limit lim of x as it approaches 1 from the left of the function x+2/(x-1)^3A function is said to have a vertical asymptote wherever the limit on the left or right (or both) is either positive or negative infinity.For example, the function f(x)=(−3(x+2))/(x^2+4x+4) has a vertical asymptote at x=−2 Find each of the following limits. limx→−2−(−3(x+2))/(x^2+4x+4)= limx→−2+(−3(x+2))/(x^2+4x+4)= limx→−2(−3(x+2))/(x^2+4x+4)=
- A. What is the main and range of f? B. At what point if any does limf(x) exist? C. At what point does the left hand limit exist but not the right hand limit and vice versa?let function f be defined by f(x)={x+1 if x<5 } {1 if x>5 } sketch the graph of this function, find the fallowing limit if they exist.() lim as x approaches -5 f(x)= lim as x approaches +5 f(x)= limit as x approaches 5 f(x)=Prove that if the limit of f(x) as x approaches c exists, then the limit must be unique. ( Hint: Let lim f(x) = L1 as x approaches x and Lim f(x) = L2 as x approaches c and prove that L1=L2.
- Let f(x)={−2x+2 x≠1 {−5 x=1. What is f(1)? If f(1) does not exist, type: 99999 What is limx→1f(x)? If the limit does not exist, type: 99999 Is f(x) continuous at x=1suppose f,g an d h are functions which g(x)<=f(x) <=h(x) ,for all x in an open interval containing a , except possibly at a. if lim g(x) ,x approaches to a does not exist or lim h(x) ,x approaches to a does not exist , will the lim f(x) ,x approaches to a do or does not exist ?Draw a simple graph of a function f satisfying the followings: limx→2−f(x)=∞ ; limx→2+f(x)=−∞ limx→−1+f(x)=−4 ; limx→−1−f(x)=3 limx→0+f(x)=−∞ ; limx→0−f(x)=2 limx→6f(x)=0 ; limx→−4f(x)=0 limx→∞f(x)=12 ; limx→−∞f(x)=∞ ( Please do not try to formulate the function, just draw a simple graph which satisfy all above properties. )