Cool Stuff About Math

A trig chart is a derived out list of trig functions. On there is six trig functions: sine (sin) cosine (cos) secant (sec) cosecant (csc) tangent (tan) and cotangent (cot). You can use the trig chart to evaluate angles in degrees or radians.

Trig Chart
(bold applies for all six functions)
sin 0 = 0 cos=1
sin 30 (pie/6) = 1/2 =sqaure root3/3
sin 45 (pie/4) =square root2/2 =square root2/2
sin 60 (pie/3) =square root3/3 =1/2
sin 90 (pie/2) =1 =0

scs=undefined sec=1
=2 =2 square root 3/3
=square root 2 =square root 2
=2 square root 3/3 =2
=1 =undefined

tan=0 
cot=undefined=
3 square root3/3 =square root 3
=1 =1
=sqaure root 3 =3 sqare root3/3
=undefined =0

ex:using trig chart evaluate
A. cos 30 B. tan pie/4
square root3/3 1