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09-05-2024
Mathematics

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t=a+(n-1)d make d subject

Respuesta :

09-05-2024

Divide both sides by a(n - 1):

T / a(n - 1) = (a(n - 1)d) / a(n - 1)

Simplify

T / a(n - 1) = d

d = T / a(n - 1)

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