SOLUTION: Find the exact values of sin 2α, cos 2α, and tan 2α given the following information.
cos α = -4/5 90° < α < 180°
sin 2α = ?
cos 2α = ?
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-> SOLUTION: Find the exact values of sin 2α, cos 2α, and tan 2α given the following information.
cos α = -4/5 90° < α < 180°
sin 2α = ?
cos 2α = ?
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Question 930587: Find the exact values of sin 2α, cos 2α, and tan 2α given the following information.
cos α = -4/5 90° < α < 180°
sin 2α = ?
cos 2α = ?
tan 2α = ? Answer by Alan3354(69443) (Show Source):
