Homework Help: Trig ratio question

1. Jun 3, 2009

Imperil

Use the "bow-tie" diagram to state the value of each trigonometric ratio.
a) sin 45
b) cos 60
c) tan 30
d) tan 45

a) 1 / $$\sqrt{2}$$
b) 1 / 2
c) 1 / $$\sqrt{3}$$
d) 1

Once again with this text the wording has thrown me off. It asks for the ratios but throws in that you should use the "bow-tie" diagram. All the diagram shows is that related acute angles of each quadrant, I don't see how that has any relation to this question.

2. Jun 3, 2009

HallsofIvy

Your answers are correct. And they are ratios! Every trig function is a ratio.