1) f(x)=1/x^2 -4 has a removable discontinutiy at x=2. (A) True (B) False 2) lim
ID: 2844854 • Letter: 1
Question
1) f(x)=1/x^2 -4 has a removable discontinutiy at x=2.
(A) True
(B) False
2) lim as x approaches to zero 1-cosx/sinx=0
(A)True
(B)False
3)Find the x-coordinate of each point of discontinuity of f(x)=x-3/x^2+5x-24.
4)Find the x-coordinate of each point of dicontinuity, if any of f(x)=1/5-2sinx.
5)lim as x approaches to pi sin(x-pi)/x-pi=.
6)lim as x approaches to -pi sin(x)/x+pi=.
7)lim as x approaches pi/2 sin(4x)/x=.
8)lim as x approachespi/2 sin(x)/2x=.
9)lim as x approaches 1/2 sin(pi x)/x=.
10)lim as x approaches zero sin(pi x)/x=.
11)cos 11pi/3=.
12) (tan 30 degrees)(cot 30 degrees)=.
13)cos pi-tan(-pi/4)=.
14)cos pi/6=.
15)sin pi/6=.
16)The intermediate value theorem can be used to show that there is a solution to f(x)=-3x^3+2x+1/x =0 on [-2,4].
(A)True
(B)False
17)x^2-3x=2 has at least one solution on the interval [1,4]
(A)True
(B)False
18)f(x)=x^2+3x+1 has at least one root on the interval [-1,0].
Explanation / Answer
1. true
2. true
3. x= 1, -4
4. no discontinuity
5. 1
6. -1
7. 1/2 pi
8. 2
9. pi
10. pi
11. 1/2
12. 1
13. 0
14. root (3)/ 2
15. 1/2
16.true
17. false
18 . true
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.