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kipiarov [429]
3 years ago
14

Find cosθ, cscθ, and tanθ, where θ is the angle shown in the figure. Give exact values, not decimal approximations.

Mathematics
1 answer:
NNADVOKAT [17]3 years ago
3 0

Answer:

see explanation

Step-by-step explanation:

To find cscθ we require to find the third side of the triangle.

let 3rd side be x and using Pythagoras' identity

x² + 8² = 9²

x² + 64 = 81 ( subtract 64 from both sides )

x² = 17 ( take square root of both sides )

x = \sqrt{17}

Then

cosθ = \frac{adjacent }{hypotenuse} = \frac{8}{9}

cscθ = \frac{hypotenuse}{opposite} = \frac{9}{\sqrt{17} }

tanθ = \frac{opposite}{adjacent} = \frac{\sqrt{17} }{8}

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