angelaalien13 angelaalien13

28-12-2017
Mathematics

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3) Please help with question. WILL MARK BRAINLIEST + 10 POINTS.

3 Please help with question WILL MARK BRAINLIEST 10 POINTS class=

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lesliekolleroxrkcf lesliekolleroxrkcf

28-12-2017

-12/13 is the correct answer. tan is positive and sin is negative so we are in 3rd quadrant. use cos²x + sin²x=1 identity to determine cos x

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