Find the point(s) of discontinuity of the following functions. x2+3 1. x2-16 x²-3x 2. x3+2x2+5x 3(x+2)2 3. x+4x+x-6

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter3: Polynomial And Rational Functions
Section3.6: Rational Functions
Problem 2E
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Find the point (s) of discontinuity of the following fumctions.
x2+3
1.
x2-16
x²-3x
2.
x3+2x2+5x
3(x+2)?
3.
9-x+zX++gX
3x+2
4.
x2-6x+9
5. cos 2x – 67
Prove.
6. Show that the function y = xtan is discontinuous at the origin. What type of
discontinuity is present?
Evaluate the limit.
7. lim 2
x+00
8. lim
1+27
9. lim sin x
sin x
10. lim
x00 x
Transcribed Image Text:Find the point (s) of discontinuity of the following fumctions. x2+3 1. x2-16 x²-3x 2. x3+2x2+5x 3(x+2)? 3. 9-x+zX++gX 3x+2 4. x2-6x+9 5. cos 2x – 67 Prove. 6. Show that the function y = xtan is discontinuous at the origin. What type of discontinuity is present? Evaluate the limit. 7. lim 2 x+00 8. lim 1+27 9. lim sin x sin x 10. lim x00 x
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