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# If the terminal arm of angle θ intersects the unit circle at point (-7/9, (-sqrt32)/9) then what is θ to the nearest hundredth of a radian?

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- billrussell42Lv 71 month agoFavorite Answer
you want the arctan ((√32/9) / (7/9))

θ = arctan ((√32/9) x (9/7))

θ = arctan (4√2/7)

θ = 0.68 rad

but this is in Q3 as both are negative, so

θ = π + 0.68 rad = 3.82 rad

edit, corrected

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