De 5 galones de pintura Don lucho se gato la cuarta parte para pintar la sala ¿Cuanto pintura gasto Don lucho?

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

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x