anonymous
  • anonymous
Use the diagram to find sin X as a fraction in simplest form.
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
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anonymous
  • anonymous
Okay, what is the sin function? What two sides?
anonymous
  • anonymous
um im not too sure

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anonymous
  • anonymous
SOHCAHTOA. Remember that for the rest of your life. ;)
anonymous
  • anonymous
Sin = Opposite / Hypotenuse Cos = Adjacent / Hypotenuse Tan = Opposite / Adjacent You will use those a lot.
anonymous
  • anonymous
what? haha
anonymous
  • anonymous
i still don't get it....
anonymous
  • anonymous
Do you know what opposite and adjacent mean, relative to the angle, X, in the triangle?
anonymous
  • anonymous
idk if this is right: adjacent is 36 opposite is 60 and hypotenuse is 48 ?
anonymous
  • anonymous
You're right about adjacent. The other two, you have mixed up. Opposite will always be the only side of the triangle that doesn't touch the angle you're looking at. The hypotenuse (in a right angle triangle) is always the side across from (not touching) the right angle. Also, the hypotenuse will *always* be the longest side.
anonymous
  • anonymous
sin: 48/60 cos: 36/60 tan: 48/36 is this correct?
anonymous
  • anonymous
Yes! You've got the premise. The only issue is with how you've written it. Technically, the value of your angle (in degrees) is equal to sin(48/60), cos(36/60), or tan(48/36).
anonymous
  • anonymous
You know X = sin(48/60), all that's left is the question asks for a fraction in simplest form.
anonymous
  • anonymous
4/5
anonymous
  • anonymous
Sorry, I was thinking backward. It's not X = sin(4/5). It's sin X = 4/5. So yes, that is perfect.
anonymous
  • anonymous
thankies!! ;D

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