easy..
What is sin 60 deg?
rad 3/ 2
The point ( - rad3/2, 1/2) is on the unit circle .
Find sin a...
1/2
Find a reference angle of - 465 deg...
75 deg
The reference angle of 325 deg is....
35 deg
Find the exact value of sin150 deg without calculator.
1/2
Find tan A, if cos A = 3/4, and sinA < 0.
Quadrant 4, tan neg,
Answer : - rad11/ 3
Which quadrant is the angle A in, if
cos A > 0 and tan A< 0
4
Find a reference angle of -7 pi/6
pi/6
Point P( -5/13, -12/13) is on the unit circle. Find tanA.
12/5