Solutions To Exercises Functions Worksheet Page 4
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13Solutions to Exercises
29
Exercise 1(d) Determine the values of the trigonometric functions at the angles:
with radian measure −π/4.
π
1 √
−1
Solution: The coordinates of the point P determined by the angle −
rad are
,
.
√
4
2
2
The table below list the desired values.
t
P
sin cos tan cot
sec
csc
√
√
1 √
−1
−1
1 √
−π/4
,
−1
−1
2 −
2
√
√
2
2
2
2
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