an = a + (n − 1)d, despeje n
Solution
Para despejar n en la fórmula de una progresión aritmética an = a + (n - 1)d, sigue los siguientes pasos:
- Primero, resta a de ambos lados de la ecuación para obtener: an - a = (n - 1)d
- Luego, divide ambos lados de la ecuación por d para obtener: (an - a) / d = n - 1
- Finalmente, suma 1 a ambos lados de la ecuación para obtener: n = (an - a) / d + 1
Por lo tanto, la fórmula para n en términos de an, a y d es n = (an - a) / d + 1.
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