The center of the regular octagon below is at the origin. Which of the following rotational symmetries apply to the regular octagon?
Rotation
Applies to the figure?
Rotational symmetry of 135° about the origin
Yes/No
Rotational symmetry of 180° about the origin
Yes/No

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step-by-step explanation:

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.

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