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f(x) =

A = Point(xAxis)
semi = Ray(A, A + (1, 0))
f(x) = (x + 2) / (x^(2) + (4 * x) + 5)
C = 0 (slider from -5 to 5, step 0.1)
c_1 = 0
F(x) = Integral[f] + C
CasillaDeEntrada1 = Textfield(f)
texto2: "f(x)=" + (LaTeX[f]) + ""
texto1: "F(x)=" + (LaTeX[F]) + ""
discri: fractionalPart(Sum[(1000 * Reverse[Coefficients[F]])]) ≟ 0
a: x(A)
B = Point(xAxis)
b: x(B)
texto4: "b = " + b
texto3: "a = " + a + ""
in = Integral(f, a, b)
paren1 = If(F(a)  <  0, "(", "")
paren2 = If(F(a)  <  0, ")", "")
texto8: "F(" + (LaTeX[b]) + ")-F(" + (LaTeX[a]) + ")=" + (LaTeX[F(b)]) + "-" + (LaTeX[paren1]) + "" + (LaTeX[F(a)]) + "" + (LaTeX[paren2]) + "=" + (LaTeX[in]) + ""
texto7: "\int_{" + (LaTeX[a]) + "}^{" + (LaTeX[b]) + "}{\left(    " + (LaTeX[Expand[f]]) + " \right)} \space dx =" + (LaTeX[in]) + ""
condicionado: "F(x) = " + (LaTeX[Simplify[Integral[f]] + C]) + ""