UPSC NDA I and II 2020 Math Solved Paper

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Question : 118 of 120

Marks: +1, -0

If

lim

x→1

x4−1

x−1

=

lim

x→k

x3−k3

x2−k2

, where k≠0, then what isthe value of k?

[NDA-I 2020]

2
3
4
3
8
3
4

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