find the values of the trigonometric functions of t if cost
find the values of the trigonometric functions of t if cost = -6/10 and the terminal point of t is in quadrant III
Solution
cos t=-6/10
adjacent=6,hypotenuse=10
opposite=sqrt(100-36)=8
sin t=opposite/hypotenuse=-8/10=-4/5
tan t=sin t/ cos t=-8/-6=4/3
cot t =1/tan t=3/4
sec t= 1/cos t= -5/3
csc t=1/sin t=-5/4

