The Rockets First company needs to hire an engineer to develop a prototype rocket. The company asks several engineers to provide a cost and time estimate for creating a prototype. Each bid is shown in the table Which prototype is the least cost-effective solution?

1.Fast Flight
2.Higher Flyers
3.Orbit or Bust
4.Infinity & Beyond

here is your mark brainliest

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

addition

step-by-step explanation:

ummm seems that u didnt post the attachement !