If sinθ = 2/3 and θ is located in Quadrant II, then tan2θ = _____.
1 answer:
Answer:
Step-by-step explanation:
Quadrant 2 means cosine is negative.
So
So the adjacent side is
So
Now to find
We will need before proceeding.
Now plug it in and the rest is algebra.
Now the algebra, the simplifying.... We need to get rid of the compound fraction. We will multiply top and bottom by
This will give us
Multiply top and bottom by
The answer reduces to
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The answer for your question is a