Question

if cotA=5/12andA lies in 3rd quadrant then find the value of sin theta and sec theta​

Answer 1

Answer:

Sin thetta = 12/13 and Sec thetta = 13/5

Step-by-step explanation:

here,it is given that CotA = 5/12 = b/p

Base = 5

Perpendicular = 12

By pythogyorus theorum,

B^2 + P^2 = HYP^2

5^2 + 12^2 = HYP^2

25 + 144 = HYP^2

√169 = HYP

13 = HYP

Sin thetta = p/h = 12/13

Sec thetta = h/b = 13/5