Sin(x)
sin(x) = ? / ?
(name the sides!)
sin(x) = ? / ?
Opposite / Hypotenuse
cos(x) = ? / ?
(name the sides!)
cos(x) = ? / ?
Adjacent / Hypotenuse
30 degrees = ______ radians
30 degrees = Pi/6 radians
sin(pi/2) =
sin(pi/2) = 1
cos(pi/2) =
cos(pi/2) = 0
Pi/4 radians = _______ Degrees
Pi/4 radians = 45 Degrees
sin(180 degrees) =
sin(180 degrees) = 0
cos(180 degrees) =
cos(180 degrees) = -1
3pi/2 radians = _______ degrees
3pi/2 radians = 270 degrees
sin(135 degrees) =
sin(135 degrees) = sqrt(2)/2
cos(150 degrees) =
cos(150 degrees) = -sqrt(3)/2
150 degrees = ________ radians
150 degrees = 5pi/6 radians
sin(225 degrees) =
sin(225 degrees) = -sqrt(2)/2
cos(-30 degrees) =
cos(-30 degrees) = sqrt(3)/2
20pi/9 radians = ______ degrees
20pi/9 radians = 400 degrees