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so what you do is Soh Cah Toa, Cah for cosine so if you have a triangle you do the length of the adjacent divided by hypotenuse and the number you get (the rest depends on the calculator) you press 2nd or shift then cos button on your calculator. remember the calculator must be scientific
the actual formula is cosine theta=a
h
then you write the numbers in and you should know the rest
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How do you use cosine?
cosine = adjacent/hypotenuse. It can be used as other trig functions can.
Which trigonometric functions are even?
Cosine and secant are even trig functions.
What the only formula you can find the exact value of cosine 30?
Cosine(30) = sqrt(3)/2
How do you calculate cosine of an angle?
To calculate the cosine in a right angled triangle: Length of adjacent side divided by the hypotenuse. Check out these articles for a simple free tool and tutorial that will make trig simple enough for ANYBODY to understand! http://www.ehow.com/how_5520340_memorize-trig-functions-losing-mind.html http://www.ehow.com/how_5227490_pass-mind-part-unknown-sides.html http://www.ehow.com/how_5428511_pass-part-ii-unknown-angles.html
Show all trigonometry formulas?
The distance formula using Pythagorean theorem: trig values trig formulas triangle abc trigonometric concepts trigonometric formulas.
