Sequences and Series Part 2

Section: Mathematics

Question : 35 of 100

Marks: +1, -0

Consider two G.Ps. 2,22,23,..... and 4,42,43,.... of 60 and n terms respectively. If the geometric mean of all the 60+n terms is (2)‌

225

, then

∑

k=1

nk(n−k) is equal to :

[26-Jul-2022-Shift-1]

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