The sequence an = 8, 13, 18, 23, ...is the same as the sequence ay = 8,
an = an-1 + 5.

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

10 b/c 5*2 =10

step-by-step explanation:

b and c

step-by-step explanation: