if the sum of one term is 2 and the sum of the two-term is 0 the sum of 100 terms is?
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if the sum of one term is 2 and the sum of the two-term is 0 the sum of 100 terms is?
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Answer:
Explanation :
✦ Given :–
✦ To Find :–
✦ Formula Applied :–
✦ Solution :–
→ S₁=a
∴ a=2
→ S₂=a₁+a₂
∴ 0=2+a₂
⇒ a₂=(-2)
→ d=a₂-a₁=0-2=(-2)
∴ d=(-2)
Now we need to find S₁₀₀ :
∴ The Sum of first 100 terms is (-9700).