Question

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Answer 1

The answer is tanФ ≅ 1.1916 ⇒ the third answer

Explanation:

∵ 180° < Ф < 270°

∵ Ф is in the third quadrant

∴ The value of tanФ is positive

∵ sinФ = -0.7660

∴ Ф = 180° + sin^-1(0.7660) = 229.996°

∴ tanФ = 1.191586 ≅ 1.1916