Which of the following are true?
fractions and ratios cannot have zero in the denominator.
fractions and ratios are different names for the same thing.
some fractions and ratios can be written as mixed numbers.
fractions and ratios can be simplified the same way.

Fractions and ratios can be simplified the same way.

Fractions and ratios cannot have zero in the denominator. these are correct

4444444444444 i think

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