the sum of n terms of an ap is n square - n then the n terms will be
Answers
Answered by
2
Answer:
Step-by-step explanation:
Sₙ = n²-n
S₁ = 1²-1 =0
S₂ = 2²-2 =2
S₃ =3²-3 = 6
S₄ = 4²-4 =12
a = S₁ = 0
a₂ = S₂-S₁ = 2
a₃=S₃-S₂ = 4
a₄ =S₄-S₃ = 6
A.P.=> 0,2,4,6,....
a=0, d=2
aₙ = a+(n-1)d = 0+(n-1)2
aₙ = 2n-2
Similar questions