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f(x) = 2x ; g(x) = 3x + 1
A) g(x) / f(x)
= (3x + 1) / (2x) = (3x + 1) / 2x
B) fog(x) = f(g(x))
= f(3x + 1) = 2(3x + 1) = 6x + 2
C) g(f(x))
= g(2x) = 3(2x) + 1 = 6x + 1
Respuesta 1A, 2C, 3B
Pregunta 2.
f(x) = x² ; g(x) = √(x + 3)
A) f(x) + g(x)
= x² + √(x + 3)
B) f(g(x))
= f(√(x + 3)) = (√(x + 3))² = x + 3
C) gof(x) = g(f(x))
= g(x²) = √(x² + 3)
Respuesta 1B, 2A , 3C