No student devices needed. Know more
10 questions
sinθ=
x/y
y/x
x/r
y/r
sinθ=
−31
3
21
2−3
tanθ=
7/24
-7/24
24/7
-24/7
cosθ=
-3/4
-3/5
4/5
-4/5
cosθ=
5/3
-5/3
3/5
y/1
cosθ=
3/5
4/5
3/4
5/4
cosθ=
-1
22
−22
2
cosθ是否正數??
是
否
sinθ=
-5/12
5/12
-5/13
5/13
cosθ=
2.4/2.5
0.7/2.5
0.7/2.4
1
Explore all questions with a free account