___________________________________________________________________________
Calculus I                                                 Quiz  #4                                       September 17, 2003

Name____________________          R.  Hammack                                            Score ______
__________________________________________________________________________
(1)
(a)  cos(π) =

(b)  cos(π/3) =

(c)  sin(π/3) =

(d)  tan(π/3) =

(e)  sin((7π)/4) =



(2) Find all values of θ for which tan(θ) = 3^(1/2).

 



(3) Suppose 0≤x≤π/2 and sec(x) = 5/2. Find sin(x).

 



(4) Consider the following triangle. Find cos(θ).
[Graphics:HTMLFiles/quiz4sol_30.gif]