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April 18, 2015

April 18, 2015

Posted by **David** on Wednesday, October 12, 2011 at 11:38pm.

tan X

a. tan X = 0.49

Just not sure how to solve these questions

- trig -
**MathMate**, Wednesday, October 12, 2011 at 11:42pmTan

^{-1}(0.49) is not one of those which have exact answers. You will have to resort to a calculator or a table of tangents.

On a calculator, enter 0.49 and press the button tan^{-1}, which is usually preceded by a yellow key, and is written above the tan key. I get about 26°.

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