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Trig ratio question

  • Thread starter Imperil
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  • #1
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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

My Answer:

a) 1 / [tex]\sqrt{2}[/tex]
b) 1 / 2
c) 1 / [tex]\sqrt{3}[/tex]
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.
 

Answers and Replies

  • #2
HallsofIvy
Science Advisor
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Your answers are correct. And they are ratios! Every trig function is a ratio.
 

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