Question

If sin theta = - 4/5 Find value of tan theta and cos theta where theta lies ll quadrant​

Answer 1

Step-by-step explanation:

sin©=-4/5

we know

sin²©+cos²©=1

so

(-4/5)²+cos²©=1

cos²© =1-(16/25)

cos²© =9/25

cos© = 3/5

tan ©= 4/3

but in II quadrant

sin©=4/5

cos©=-3/5

tan©=-4/3