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Mathematics 15 Online
OpenStudy (anonymous):

Please help! angle A in Quadrant II, cos A= -7/25 tan 2 A= a. -527/336 b. 336/527 c. 527/336 d. -336/527

OpenStudy (anonymous):

can you determine the value for sinA with that given value of cosA ?

OpenStudy (anonymous):

Hmm... Not sure :/

OpenStudy (anonymous):

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