The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » sci.math.* » sci.math

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Name/Identity Of Trig Function Conversion Concept?
Replies: 2   Last Post: May 27, 2012 9:40 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Kaimbridge M. GoldChild

Posts: 79
From: 42.57°N/70.89°W; FN42nn (North Shore, Massachusetts, USA)
Registered: 3/28/05
Re: Name/Identity Of Trig Function Conversion Concept?
Posted: May 22, 2012 11:51 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

Fixed typo:

On May 21, 7:54 pm, Kaimbridge wrote:
> Let?s say you have tan(Ñ) = (X/Y)*tan(N).
> A lot of there may be identical conversion factors for


Should be "A lot of times there may be..."

> sine and cosine that cancel out: E.g.,
> sin(Ñ) = X*Q*sin(N); cos(Ñ) = Y*Q*cos(N);
> In this case the Qs cancel, but you don?t know what Q
> is if you are only given the tangent form.
> But, if you let TC(N) = ((X*sin(N))^2 + (Y*cos(N))^2)^.5,
> then sin(Ñ) = X*sin(N)/TC(N) and cos(Ñ) = Y*cos(N)/TC(N);
> Does the function/concept ?TC(N)? have a particular
> name/identity?


Wikipedia?Contributor Home Page:

***** Void Where Permitted; Limit 0 Per Customer. *****

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.