Question

already know sin∝=-4/5 ，And∝It's the Angle in the third quadrant，Evaluate cos∝and tan∝​

Answer 1

Answer:

$\alpha \: \: \:lies \: in \: 3rd \: quadrant. \\ \cos\alpha = - \frac{ 3}{5} \\ \tan\alpha = \frac{4}{3}$