49. find the least common multiple of these pairs of numbers.
a. 2 and 8
b. 9 and 6

the LCM of a., is 2.

b. is 3

as u know, 2x1=2/ 2x4=8

for b. 3x3=9

3×2=6

the object is to find the lowest number u can multiply to get the answer for each problem. I hope this helps.

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