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Find the value of cos theta for the angle shown.

Find the value of cos theta for the angle shown.-example-1

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Answer:

Explanation:

X = 4,0

hypotenuse = sqrt(4^2 + (-sqrt(33))^2 )

hypotenuse = sqrt(16 + 33)

hypotenuse = sqrt(49)

hypotenuse = 7

Cos(theta) = 4/ 7

The cos looks like it should be negative, but it is positive in quad 4.

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