Need full answer quick please help

Line 1 contains an error.

Step-by-step explanation:

2k^2 and 2 are fine but 2k and 1k don't make 5k since when you add it you would get 3k.

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

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