Calcule R R R (2x−y 2 ) dA, onde R é a região triangular delimitada pelas retas y = −x+1, y = x+1 e y = 3.

1,918

step-by-step explanation:

what i would say the best answer is a. 40.5

answer is 33

step-by-step explanation:

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft