Question

if tan theta =1 , then sin theta = _____ when theta lies in 3rd quadrant a)1/2 b) -1/2 c) -1/underroot 2 d) 1/underroot2​

Answer 1

Answer:

-1/underoot2

Step-by-step explanation:

in third quadrant sin is negative. and tan45=1 therefore sin45=1/underoot2. thus answer is -1/underoot2