Advance Trangle Angle Problem
- Thread starter DKchan
- Start date
pka
Elite Member
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- Jan 29, 2005
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Do you understand the trigonometric functions?
Do you understand the inverse trigonometric functions?
Otherwise I cannot think of another way do this clever problem!
\(\displaystyle \L
\tan (A^o ) = \frac{1}{2}\quad \Rightarrow \quad \arctan \left( {\frac{1}{2}} \right) = A^o\)
\(\displaystyle \L
\tan (B^o ) = \frac{1}{3}\quad \Rightarrow \quad \arctan \left( {\frac{1}{3}} \right) = B^o\)
\(\displaystyle \L
A^o + B^o = \arctan \left( {\frac{1}{2}} \right) + \arctan \left( {\frac{1}{3}} \right) = 45^o\)
Do you understand the inverse trigonometric functions?
Otherwise I cannot think of another way do this clever problem!
\(\displaystyle \L
\tan (A^o ) = \frac{1}{2}\quad \Rightarrow \quad \arctan \left( {\frac{1}{2}} \right) = A^o\)
\(\displaystyle \L
\tan (B^o ) = \frac{1}{3}\quad \Rightarrow \quad \arctan \left( {\frac{1}{3}} \right) = B^o\)
\(\displaystyle \L
A^o + B^o = \arctan \left( {\frac{1}{2}} \right) + \arctan \left( {\frac{1}{3}} \right) = 45^o\)
DKchan said:my understanding of trigometry is very poor so im trying to solve this very clever problem with out using it.
Thanks for everyone's suggestions and help
I don't think this problem is particulary "clever," and I do think you need to know basic trigonmetry to solve it. Please re-read the responses you've been given, and try to use what you know about trig....it doesn't take anything all that complicated.