anacalcano anacalcano
  • 15-12-2017
  • Mathematics
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An acute angle θ is in a right triangle with sin θ = eight ninths. What is the value of cot θ?

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Аноним Аноним
  • 15-12-2017
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Blacklash
Blacklash Blacklash
  • 05-07-2019

Answer:

[tex]cot\theta =\frac{\sqrt{17}}{8} [/tex]

Step-by-step explanation:

We have

[tex]sin\theta =\frac{8}{9}[/tex]

We know that

[tex]cot\theta =\frac{cos\theta}{sin\theta} [/tex]

[tex]cos\theta =\sqrt{1-sin^2\theta}=\sqrt{1-\left (\frac{8}{9} \right )^2}=\sqrt{1-\frac{64}{81}}=\frac{\sqrt{17}}{9} [/tex]

Substituting

[tex]cot\theta =\frac{\frac{\sqrt{17}}{9}}{\frac{8}{9}}=\frac{\sqrt{17}}{8} [/tex]

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