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Topic: Circular functions
Replies: 6   Last Post: Jan 19, 2009 7:50 PM

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Posts: 282
Registered: 12/9/07
Circular functions
Posted: Jan 19, 2009 5:18 PM
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Is sin90 equal to 1 because the side opposite the angle is the same as
the hypotenuse and therefore dividing two equal quantities into each
other equals 1?

If so, then is there a similar way to prove the values of sin, cos,
and tan of 0, 90, 180, 270 and 360?


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