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January 25, 2015

January 25, 2015

Posted by **CJ** on Thursday, January 13, 2011 at 5:30pm.

- Trigonometry/ Please Help -
**Reiny**, Thursday, January 13, 2011 at 5:34pmsketch a right-angled triangle with hypotenuse 3 and opposite side as 2

by Pythagoras the adjacent side to angle alpha is √5

You should know the definition of the 6 trig ratios in terms of opposite, adjacent and hypotenuse

e.g. tan (alpha)= 2/√5

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