Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2010-08-18 12:46:05

bmwilly
Guest

Limit of a trig function

Please help on how to do this!

Limit as h ⇒0 of...

(sin(π/4+h)-(√2/2))/h

Thanks

#2 2010-08-18 13:01:22

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Limit of a trig function

Hi bmwilly;

One way is, since this is of the form 0 / 0, is to use L'Hospitals rule on it.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3 2010-08-18 14:38:26

bmwilly
Guest

Re: Limit of a trig function

ah thank you. I always forget about that rule!

#4 2010-08-18 14:55:53

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Limit of a trig function

Glad to help. Bring it back here if you get stuck!


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

Board footer

Powered by FluxBB