If an inequality is less than or equal to a number or greater than a number the circle is closed on a number line?

closed

Step-by-step explanation:

for less than and greater than it is open

less than or equal to   and    greater than or equal to ,,it is closed

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

other answer is correct. i had used the radius of the radius somehow. a website: