Mathematics, 25.06.2019 14:00 michaelwthms

What ia the value of cosθ given that (-2,9) is a point on the terminal side of θ ? a. $- \frac{9 \sqrt{85} }{85}$ b. $-\frac{2 \sqrt{85} }{85}$ c. $\frac{9 \sqrt{85} }{85}$ d. $\frac{2 \sqrt{85} }{85}$

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What ia the value of cosθ given that (-2,9) is a point on the terminal side of θ ? a. b. c. d.

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What ia the value of cosθ given that (-2,9) is a point on the terminal side of θ ? a. $- \frac{9 \sqrt{85} }{85}$ b. $-\frac{2 \sqrt{85} }{85}$ c. $\frac{9 \sqrt{85} }{85}$ d. $\frac{2 \sqrt{85} }{85}$