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Thread: Sin and Cos

  1. Aug 30th, 2002, 06:01 PM #1
    danday1974
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    Sin and Cos

    Hi guys

    Can any1 explain sin and cos for me please or point me to a website

    ty

    Dan
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  2. Aug 30th, 2002, 06:16 PM #2
    bugzpodder
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    consider the unit circle (radius 1, centered at origin). join any point on that circle to the origin, and the angle it makes with the line segment is theta. that point (x,y) is expressed as (cost,sint), where t is theta. since the point is on the circle, it satisfies the equation of the circle: x^2+y^2=1 or cos^2(t)+sin^2(t)=1

    if you wanted a website u could've just done a search on Yahoo!
    http://www.sosmath.com/trig/trig.html
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  3. Aug 30th, 2002, 06:19 PM #3
    danday1974
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    Ty

    Yeah I know i culda searched but u guys know the best pages

    Cheers

    Dan
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