anonymous
  • anonymous
Find the exact real value of arccos
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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LanHikari22
  • LanHikari22
arccos of what? Arc cosine would be the inverse function of Cosine. Kind of coming from the relationship between an angle, and an arc produced from the triangle in which this angle is on.|dw:1446858854045:dw|
LanHikari22
  • LanHikari22
cos of a theta, would be like defining a line at theta angles. then finding ratio of its horizontal component to its length. I say "component" because every line can be made by adding to other line segments, or "vectors"
LanHikari22
  • LanHikari22
arc cosine gives an angle when given th |dw:1446859143179:dw|

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LanHikari22
  • LanHikari22
arc cos gives an angle, provided a ratio. It's like it defines a triangle from a ratio (because all triangles are, are actually embodiment of ratios!) and then finds the arc length formed, then divided that by the radius to get theta. Or maybe i'm just stretching so much.

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