SOLUTION: If cos Θ = -4/7 , what are the values of sin Θ and tan Θ? please help, thank you!

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Question 878735: If cos Θ = -4/7 , what are the values of sin Θ and tan Θ?
please help, thank you!
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
cos = -4/7
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sin%28t%29+=+sqrt%281+-+cos%5E2%28t%29%29+=+sqrt%281+-+16%2F49%29+=+sqrt%2833%2F49%29
sin = sqrt(33)/7 or -sqrt(33)/7
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tan = sin/cos = sqrt(33)/4 or -sqrt(33)/4
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The signs depend on the quadrant.
cos = -4/7 --> Q2 or Q3