1. Draw a 30-60-90 triangle. Label all angle measures and side relationships. Using the side relationships from the figure, show that the following trigonometric identities hold true for the given angles:

A) tan(60)=sin(60)/cos(60)

B) sin^2(30)+cos^2(30)

Question

1. Draw a 30-60-90 triangle. Label all angle measures and side relationships. Using the side relationships from the figure, show that the following trigonometric identities hold true for the given angles:


A) tan(60)=sin(60)/cos(60)

B) sin^2(30)+cos^2(30)

anonymous · Answer

i know how to draw the triangle, my problem is how to prove A and B are true

anonymous · Answer

What type of math is this?

anonymous · Answer

geometry

antonio_xx2 · Answer

@SolomonZelman

solomonzelman · Answer

Well, for Part A, it is just a rule, `tan(x)=sin(x) / cos(x)`   and  for B, there is a rule
`sin²x+cos²x=1`.

solomonzelman · Answer

You don't need to draw a 30-60-90 triangle

solomonzelman · Answer

But we can do this, to prove the 2 rules I posted.

solomonzelman · Answer

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