Let < a_n > lt; a_n > be a sequence such that a_1+a_2+. .+a_n=\frac{n^2+3 n}{(n+1)(n+2)}. If 28 \sum_{{ {\k}=1}}^{{10}} \frac{1}{a_k}=p_1 p_2 p_3 . . . p_m, where p_1, p_2 . . . . . . {\p}_{ {\m}} are the first {\m} prime numbers, then {\m} is equal to [12-Apr-2023 shift 1]

JEE Mains 12-Apr-2023 Shift 1 Solved Paper

Section: Mathematics

Question : 4 of 90

Marks: +1, -0

Let <an> be a sequence such that a1+a2+..+an=‌

n2+3n

(n+1)(n+2)

. If 28‌

∑

k=1

‌

=p1p2p3...pm, where p1,p2...... pm are the first m prime numbers, then m is equal to

[12-Apr-2023 shift 1]

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