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VK-001972
JEE Main 2025 Mathematics question
Mathematics
Sequence and Series
JEE Main 2025
Let
. Then the value of
is equal to
(1)
118
Correct
(2)
92
(3)
102
(4)
108
Answer:
(1)
Solution
. Pairing terms and using
gives the sum
.
Question ID VK-001972