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Given that cos (theta) = -5/7 and -pi < theta < -1/2pi, find the exact values of sin (theta), tan (theta), sin 2(theta), cos 2(theta) and tan 2(theta).
Guest Mar 10, 2012
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mipanda:

cos (theta) = -5/7


[input]cos (theta) = -5/7[/input]
admin  Mar 10, 2012

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