Math, asked by Brilliany, 8 months ago

Find S if n=10 a=2 and l= 20
from Chapter Arithmetic Progression​

Answers

Answered by ItzDvilJatin2
30

Answer:

\blue\star{\purple{\underline{\underline{\bf{\pink{Given}}}}}}

  • n = 10
  • a = 2
  • l=20

\blue\star{\purple{\underline{\underline{\bf{\pink{To find}}}}}}

  • Sn

\blue\star{\purple{\underline{\underline{\bf{\pink{solution}}}}}}

  • sn = \dfrac{n}{2} (a +l)
  • Sn = \dfrac{10}{2} (2 + 20)

  • sn = \dfrac{10}{2} (22)

  • sn = 110

Hope it helps

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