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Trigonometry (1 Viewer)
- Thread starter nsbrando
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Fus Ro Dah
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- 2013
You sure are asking a lot of exact value questions!
Another way of doing this is recognising the Compound Angle formula for cos(a+b), which gives us cos(30+60)=cos(90), which is equal to 0.
Another way of doing this is recognising the Compound Angle formula for cos(a+b), which gives us cos(30+60)=cos(90), which is equal to 0.
Shadowdude
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Compound angles are a 3u topic, though.You sure are asking a lot of exact value questions!
Another way of doing this is recognising the Compound Angle formula for cos(a+b), which gives us cos(30+60)=cos(90), which is equal to 0.