ericalexington ericalexington

26-07-2018
Mathematics

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!!¡¡Geometry. Cosines/Sines.Include explanation and clear answer.

Geometry CosinesSinesInclude explanation and clear answer class=

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LammettHash LammettHash

26-07-2018

By the law of cosines,

[tex]16^2=8^2+17^2-2\cdot8\cdot17\cos C[/tex]

[tex]\cos C=\dfrac{97}{272}[/tex]

[tex]C=\arccos\dfrac{97}{272}\approx69.1^\circ[/tex]

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