HELP QUICKKK IGNORE THE ANSWER I CHOSE IT WAS AN ACCIDENT HELLLPPP!

its the first one

Step-by-step explanation: a trick i learned is turn that into an arrow an were ever it points to is the direction...now all u have to do is see if its an open or closed dot

1) is right

step-by-step explanation:

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