If tan(x) =5/8 (in Quadrant 3) find
sin(x/2)
cos(x/2)
tan(x/2)

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

central angle of a triangle has the same measure as its intercepted arc.

step-by-step explanation:

b

step-by-step explanation: