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  1. MathLover1 replied to the thread Find Numbers Where f is Discontinuous...2.

    at x = 1, f is only on left side, x=1 is a hole, no function on right side=> f is discontinuous at x = 1

    May 20, 2022 at 11:14 PM
  2. MathLover1 replied to the thread Use Continuity to Evaluate Limit...2.

    correct you also need to do evaluation to show it's 8

    May 20, 2022 at 11:10 PM
  3. MathLover1 replied to the thread Use Continuity to Evaluate Limit...3.

    correct

    May 20, 2022 at 11:08 PM
  4. MathLover1 replied to the thread Find Numbers Where f is Discontinuous...3.

    correct

    May 20, 2022 at 10:56 PM
  5. nycmathguy posted a new thread.

    Use Continuity to Evaluate Limit...3

    Calculus Section 2.5 [ATTACH] Question 37 [ATTACH] As x tends to 1, the y-value goes to ln(2) = 0.693147. You say?

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    Forum: Calculus

    May 20, 2022 at 10:36 PM
  6. nycmathguy posted a new thread.

    Use Continuity to Evaluate Limit...2

    Calculus Section 2.5 [ATTACH] Question 35 [ATTACH] As x tends to 2, the y-value goes to 8. The limit is 8.

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    Forum: Calculus

    May 20, 2022 at 10:32 PM
  7. MathLover1 attached a file to the thread Removable Discontinuity...2.

    [ATTACH] , so [ATTACH] if x=3, f(x) is undefined and has a hole which we removed so, f(x)=x-4 is continuous

    upload_2022-5-20_16-12-12.gif upload_2022-5-20_16-13-8.gif May 20, 2022 at 10:15 PM
  8. nycmathguy posted a new thread.

    Find Numbers Where f is Discontinuous...3

    Calculus Section 2.5 [ATTACH] Question 45 [ATTACH] At x = 0, I say f is discontinuous. Why? LHL does not equal RHL. At x = 1,...

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    Forum: Calculus

    May 20, 2022 at 10:15 PM
  9. nycmathguy posted a new thread.

    Find Numbers Where f is Discontinuous...2

    Calculus Section 2.5 [ATTACH] Question 43. [ATTACH] I say is discontinuous at x = -1. LHL does not equal RHL. At x = 1, LHL =...

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    Forum: Calculus

    May 20, 2022 at 10:10 PM
  10. MathLover1 replied to the thread Find Numbers Where f is Discontinuous...2.

    Question 41? it's not there

    May 20, 2022 at 10:08 PM
  11. nycmathguy posted a new thread.

    Find Numbers Where f is Discontinuous...2

    Calculus Section 2.5 [ATTACH] [ATTACH] Question 41 I see holes, gaps or jumps. I say f is continuous. What about sharp turns? Is a...

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    Forum: Calculus

    May 20, 2022 at 10:03 PM
  12. nycmathguy posted a new thread.

    Removable Discontinuity...2

    Calculus Section 2.5 [ATTACH] [ATTACH]

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    Forum: Calculus

    May 20, 2022 at 9:58 PM
  13. UmYeah posted a new thread.

    Check my math - electric cars and the grid

    I set out for a rough number on how much electricity the USA needs for a 100% electric cars. The answer is a little shocking and hard...

    Forum: Basic Math

    May 20, 2022 at 5:02 PM
  14. nycmathguy replied to the thread Number of Possible Passwords.

    A much better explanation. Back to Calculus later today and throughout the weekend. Thanks.

    May 20, 2022 at 2:38 PM
  15. nycmathguy liked MathLover1's post in the thread Number of Possible Passwords.

    note: each password must be at least 9 digits long -> since there are 10 digits in all, means password could be 9 digits long or 10...

    May 20, 2022 at 2:38 PM
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