What value is needed to complete the square?

I think 1 is needed to complete tye square.

So,the answer is 1.

HOPE THIS WILL HELP U...

1.

Step-by-step explanation:

Divide the coefficient of x by 2 then square it:

-2 / 2 = -1

(-1)^2 = 1.

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