Datdude2019 Datdude2019
  • 14-05-2019
  • Mathematics
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i need help with finding the value of n?​

i need help with finding the value of n class=

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MathPhys
MathPhys MathPhys
  • 14-05-2019

Answer:

14

Step-by-step explanation:

2k - 1 is linear, so this is an arithmetic series.  The sum of an arithmetic series is:

S = (n/2) (a₁ + an)

Here:

S = 196

a₁ = 2(1) - 1 = 1

an = 2n - 1

Solving:

196 = (n/2) (1 + 2n - 1)

196 = (n/2) (2n)

196 = n²

n = 14

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