Sequence and Series: JEE Main 2023 Mathematics question
JEE Main 2023 · 15 Apr, Morning shift · Q47
JEE Main 202315 Apr, Morning shiftMathematicsHardSequence and Series179× since 2002
If the sum of the series
(21−31)+(221−2⋅31+321)+(231−22⋅31+2⋅321−331)+(241−23⋅31+22⋅321−2⋅331+341)+…
is βα, where α and β are co-prime, then α+3β is equal to __________.
Type your answer. Integers and decimals are accepted.