find tan 2a given that tangent A =4/3 and is in Quadrant 3

find tan 2A

given:tangent A =4/3 and is in Quadrant 3
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1 Answer

tan(x)=4/3, yuze invers-tan tu get x

x=53.13010235415591 deg

2x=106.26020470831182

tan(106.26...)=-3.428571428571461
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