In Zachary's history class, 1/10 of the students are making videos for their final project and 7/10 are making dioramas. What fraction of the students are making
either a video or a diorama? What fraction represent the students that are not
doing neither video nor diorama? Pls help me ;-;

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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step-by-step explanation: