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17. Complete the sentences: Oblique means having no - (1) angles. In trigonometry, you prove by reasoning. When the cosine of an angle is negative,

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17. Complete the sentences: Oblique means having no - (1) angles. In trigonometry, you prove by reasoning. When the cosine of an angle is negative, the angle obtuse analytical 18. Choose the best answer. right Find the value of the remaining side of the triangle mathematical a calculator. a = 7, b = 16, C = 40 O ~ 12 O ~ 32 O~ 4 O ~ 9

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