Question 4.sec x = 13 5 , x lies in fourth quadrant. Question 5.tan x = – 5 12 , x lies in second quadrant. Find the values of the trigonometric functions in Exercises 6 to 10. Question 6.sin 765° Question 7.cosec (– 1410°) 8. tan 19π 3 9. sin (– 11π 3 ) 10....