Question

como se resuelve esto

Answer 1

1. a) A = (3n - 3) (n)
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2
A = [3 (2,5) - 3] [2.5]
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2

b) A = 3.14r^2
A = 3.14 (b - c)^2
A = 3.14 (5 - 2)^2

c) A = b x h
A = (a + 1) (a + 1)
A = (2,5 + 1) (2,5 + 1)
A = (3,5) (3,5)


2.
A = 5 (2)^2 - 2 (-3)
A = 5 (4) + 6
A = 20 + 6
A = 26

C = 3 (2) (-3) (-1) + 4 (2)^2
C = 18 + 16
C = 34

B = 2 (-3)^2 + 7 (2) - 2 (-1)
B = 18 + 14 + 2
B = 34

D = 2/3 + (-3/2) - (-1/6)
D = (2/3 + -3/2) -1/6
D = [4 + (-9)]/6 = -5/6
D = -5/6 - 1/6 = (-30 -6)/36
D = -36\36
D= 1


Espero sirva :)