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Exact Value Problems
Mathematics 142
due Tuesday, January 11, 2011
show your work to get credit for each problem
10. Find the exact values of
(for example,
◦
(a) sec 30
p
(2) is an exact value, but 1.414 is not)
3
(b) tan
π
6
(c) 2 sin 30◦ −sin 60◦
11. If sec A = 3, find exact values for the other five trigonometric functions of A.

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