Question

If tanθ = - 4/3, then sinθ is

(a) - 4/5 but not 4/5

(b) - 4/5 or 4/5

(c) 4/5 but not - 4/5

(d) None of these

Answer 1

Correct option: (b) - 4/5 or 4/5

Explanation:

Since, tan θ < 0

. ^.. Angle θ is either in the second or fourth quadrant.

Then, sin θ > 0 or < 0

. ^.. sin θ may be 4/5 or -4/5