Exact trig values Flashcards
1
Q
How would you find out exact values (for 30 or 60 degrees)if forgotten?
A
Draw right angled triangle with sides 1, 2 and √3, then apply trigonometry.
2
Q
How would you find out values for 45 degrees?
A
Draw right angled triangle with sides 1, 1 and √2 as the hypotenuse
3
Q
What is Sin 60?
A
√3/2
4
Q
What is Cos 60?
A
1/2
5
Q
What is Tan 30?
A
√3/1
6
Q
What is Sin 30?
A
1/2
7
Q
What is Cos 30?
A
√3/2
8
Q
What is Tan 30?
A
1/√3
9
Q
What is Sin 45?
A
1/√2
10
Q
What is Cos 45?
A
1/√2
11
Q
What is Tan 45?
A
1
