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Ap important formula

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Ap important formula
  • 3 answers

Chētnà Pandey✌️ 6 years, 11 months ago

Sn= n/2( a+ l) where l= last term

Chētnà Pandey✌️ 6 years, 11 months ago

Sn= n/2 ( 2a + ( n-1)×d)

Chētnà Pandey✌️ 6 years, 11 months ago

An = a + ( n- 1)×d.
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