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December 21, 2014

December 21, 2014

Posted by **bkue** on Friday, May 18, 2012 at 12:31am.

- graphing trig functions -
**drwls**, Friday, May 18, 2012 at 12:45amYou can pick as many x points as you want. The more you plot, the easier it is to plot a smopoth and accurate curve.

For the y values that go with each x, you need a calculator, a special slide rule or a table of trig functions. Hardly anyone uses tables or slide rules anymore.

- graphing trig functions -
**bkue**, Friday, May 18, 2012 at 12:58ambut for my quiz, i am not allowed a calculator

- graphing trig functions -
**Steve**, Friday, May 18, 2012 at 10:18amIn that case, pick points that you know. For 2sinx, say, you know that

sin 0 = 0

sin pi/6 = .5

sin pi/4 = .707

sin pi/3 = .866

sin pi/2 = 1

and so on

If you know a few key values, you can sketch the graph easily. If you don't happen to know the value of pi/3, etc, use degrees. It's easy to plot x=0,30,45,60,90, etc.

- graphing trig functions -
**Fhulufhelo**, Friday, April 26, 2013 at 11:12amHow to find general solutions

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