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serg [7]
3 years ago
10

Given sin

Mathematics
1 answer:
Effectus [21]3 years ago
5 0

Answer: \frac{11}{12}

Step-by-step explanation:

<u>Use trigonometry (shown in image below) to find the 3 side-lengths:</u>

  • The side opposite of θ = \sqrt{23}
  • The base side adjacent to θ = 11
  • The hypotenuse = 12

<u>According to right triangle trigonometry:</u>

cos θ = \frac{adjacent}{hypotenuse}

<u>Substitute in the values:</u>

cos θ = \frac{11}{12}

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