Results 1 to 3 of 3

Math Help - Compute the Limit: Question 4

  1. #1
    Member
    Joined
    Feb 2009
    Posts
    118

    Compute the Limit: Question 4

    I'm very rusty with trigs and I don't know where to begin with the following question. What topics should I study in trigs to be competent in Calculus? And how do I begin answering this question?

    \text{Compute } \lim_{x \rightarrow 0 } \sqrt{1+cos^2(x)}
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Newbie
    Joined
    May 2010
    From
    San Diego CA
    Posts
    17

    Re: Compute the Limit: Question 4

    I would recommend looking up identities even though for this particular problem you will not need them (But later on they will help you simplify!). For this problem, you could just use direct substitution and receive Sqrt(2).
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Member sbhatnagar's Avatar
    Joined
    Sep 2011
    From
    New Delhi, India
    Posts
    200
    Thanks
    17

    Re: Compute the Limit: Question 4

    That's quite easy actually.

    \lim_{x \to 0 }\sqrt{1+\cos^2(x)}=\sqrt{1+\cos^2(0)}=\sqrt{2}
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Compute the Limit: Question 3
    Posted in the Calculus Forum
    Replies: 5
    Last Post: September 26th 2011, 08:53 AM
  2. [SOLVED] Compute the Limit: Question 2
    Posted in the Calculus Forum
    Replies: 8
    Last Post: September 25th 2011, 10:04 PM
  3. [SOLVED] Compute the Limit: Question 1
    Posted in the Calculus Forum
    Replies: 4
    Last Post: September 20th 2011, 06:24 PM
  4. Compute Limit
    Posted in the Calculus Forum
    Replies: 2
    Last Post: July 7th 2011, 03:51 AM
  5. Compute the limit (3^n)/(2^n)+1
    Posted in the Calculus Forum
    Replies: 6
    Last Post: January 22nd 2009, 04:56 PM

Search Tags


/mathhelpforum @mathhelpforum