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\({ }^{n-1} C_r=\left(k^2-8\right){ }^n C_{r+1}\) if and only if : [JEE Main 2024, 27 Jan (Shift 1)]

Q1

\({ }^{n-1} C_r=\left(k^2-8\right){ }^n C_{r+1}\) if and only if :

[JEE Main 2024, 27 Jan (Shift 1)]

a

\(2 \sqrt{2}< k <2 \sqrt{3}\)

b

\(2 \sqrt{3}< k \leq 3 \sqrt{2}\)

c

\(2 \sqrt{2}< k \leq 3\)

d

\(2 \sqrt{3}< k <3 \sqrt{3}\)

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