nally661 nally661
  • 07-01-2024
  • Mathematics
contestada

Which expression represents the second partial sum for [blank]?
a) (S₂ = n/2(2a₁ + (n-1)d))
b) (S₂ = n/2(a₁ + a₂))
c) (S₂ = n/2(a₁ + aₙ))
d) (S₂ = n/2(2a₁ + (n-1)d))

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