Unit Circle
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sin
A
cos
A
tan
A
Trigonometric Function
Value
angle
A
=
(accurately, in radians)
angle
A
=
(approximately, in degrees)
sin
A
=
a
= cos
B
= y-coord.
cos
A
=
b
= sin
B
= x-coord.
tan
A
=
a
/
b
= sin
A
/ cos
A
= y-coord. / x-coord.