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Trig (1 Viewer)

Thread starter Lukybear
Start date Apr 4, 2010

L

Lukybear

Active Member

#1

Trig Rules dose not cover (pi/2 + theta) does it? Like cos (pi/2 + theta) = sin (theta)

ilikebeeef

Active Member

#2

Lukybear said:
Trig Rules dose not cover (pi/2 + theta) does it? Like cos (pi/2 + theta) = sin (theta)

Yes it does.

Trebla

Administrator

Administrator

#3

You don't have to remember them. They're easy to prove by compound angle expansion.

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