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OpenStudy (anonymous):
If tanθ=3/5 where 0°≤θ≤90°, find (a) sinθ. (b) cosθ. @hartnn
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hartnn (hartnn):
2 methods, using triangle and using standard formulas which one do u prefer ?
OpenStudy (anonymous):
triangle
hartnn (hartnn):
then draw it
OpenStudy (anonymous):
sinθ=3/sqrt(34) cosθ=5/sqrt(34) why i am wrong?
hartnn (hartnn):
thats correct actually
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OpenStudy (anonymous):
|dw:1381410600286:dw|
OpenStudy (anonymous):
but the answers are: |dw:1381410641360:dw|
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