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Makayla_2011
Sep 24, 2008, 04:26 PM
Hi Im I wanted to know how to solve a trigonometric equation?

Unknown008
Sep 25, 2008, 02:22 AM
I guess you mean the basic ones. Ok, here we go!

Eg.

1.
sin(x) = \frac{1}{2}
x = sin^{-1}(\frac{1}{2}) = 30

2.
cos(x) = \frac{1}{2}
x = cos^{-1}(\frac{1}{2}) = 60

3.
tan(x) = \frac{1}{2}
x = tan^{-1}(\frac{1}{2}) = 26.56505118... = 26.6

Hope it helped. However, you'll find that there may be several solutions to a single equation, because the shape of the curve. You can see it if you sketch it. Anyway, these are the results you'll have if you typed the problem in a calculator.