Which of the following is not a polynomial identity? A. (a^2 + b^2)(c^2 - d^2) = (ac - be)^2 + (ad + bc)

B. a^3 - b^3 = (a - b)(a^2 + ab +b^2)

C. a^2 - b^2 = (a + b)(a - b)

D. (a + b)^2 = a^2 + 2ab+ b^2

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

answer: your gay

step-by-step explanation:

you dont know math