Math 115!
Quiz 4!
Wednesday, Feb. 15, 2017
NO CALCULATOR!!
1.! Give the exact value of cos 30° .
2.! If the angle θ is placed on axes in standard position and
( 4,−1) is a point on the terminal side, find the value of
each of the following.
!
(a) sin θ !
(b) cosθ !
(c) cscθ
3.! Give the value of each of the
!
following for the triangle shown.
!
!
!
(a) sin α !
(b) tan α !
(c) sec α
8
5
α