SOLUTION: Given that sin2A=1/3 and 2A is in Quadrant 2, what is the exact value of tanA?
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Question 1122762: Given that sin2A=1/3 and 2A is in Quadrant 2, what is the exact value of tanA?
Answer by math_helper(2461) (Show Source): You can put this solution on YOUR website!
and 2A in Q2 gives the following picture, where we can solve for the x value of :
Now, you can use
with :
which eventually (let u = tan(A), complete the square) resolves to in Q1
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