DocInTardis
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  • 19-04-2017
  • Mathematics
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Please help me!!!!!!!!!!!!!!!!!!!!!!!!!!!

Please help me class=

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Аноним Аноним
  • 19-04-2017
cos theta = adjacent side / hypotenuse = 5 / 13
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Аноним Аноним
  • 19-04-2017
To find the angle measure of a triangle using trigonometric ratios, you will use the inverse of a ratio. You are asked to use the cosine ratio (Adjacent/Hypotenuse) which is cos 5/13. All you have to do is add an inverse to get cos^-1 5/13. You could also write it as 1/sin 12/13 because the expression 1/sin(x) is equivalent to cos^-1 5/13.

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