HARD PRACTICE PROBLEMS!!!
Solve using Unit Circle provided (Answers at bottom of
page):
Ex. tan 180°=0 why? Because tan= y/x and 0/-1=0!
Ex. cot π/2=0 why? Because cot=x/y and 0/1=0!
1) tan 300°=?
2) cot 210°=?
3) tan 7π/4=?
4) cot π=?
Answers:
1) -√3
2) -√3
3)-1
4)doesn’t exist