Rational numbers are numbers that can be written as a fraction and ?

answer is below

Step-by-step explanation:

i don't know if you have answer choices for this question, but rational functions are any number that can be written as a fraction or decimal that has a repeating pattern or is finite.

ex:

1/2, 4.5, 1/3, 2.6666..., -23, -1.91919...

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

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