Maths / Arithmetic Progression / Sum of First n Terms

QUESTION
 

If the sum of 3 consecutive terms of an AP is zero and what will be their product ?

OPTIONS
A. 

15

B. 

3

C. 

27

D. 

None of these

Right Option : D

EXPLANATION
Explain TypeExplanation Content
Text

If(a-d)+a+(a+d)=0

Rightarrow a=0

Thus,product =(a-d)a(a+d)=0

S_K=[afrac{k+1}{2}]

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