JEE Main 20202 Sep, Evening shiftMathematicsMediumSequence and Series179× since 2002
If the sum of first 11 terms of an A.P.,
a₁, a₂, a₃, ....
is 0 (a 0), then the sum of the A.P.,
a₁
, a₃
, a₅
,....., a₂₃ is ka₁
, where k is equal to :
JEE Main 2020 · 2 Sep, Evening shift · Q5215