Exercise 1 : |
Find out if value of function y = tg x, or y = cotg x is is point x is positive, negative or zero.
a) x = - 4 / 5 p b) x = 13 / 3 p c) x = 6 |
Execise 2 : |
To which interval 
belongs v, for which is:
a) tg v > 0 /\ sin v > 0 b) cotg v < 0 /\ cos v > 0 c) sin v < 0 /\ cotg v < 0 d) tg v < 0 /\ cos v < 0 |
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Exercise 3 : |
Write sin x, cos x, tg x, cotg x for:
a) x = p / 4 b) x = -30° c) x = 780° d) x = -315° e) x = 453° 30' f) x = -1210° 20' |