If H 3- n C n -2-14 n- then n -A- 10B- 6C- 8D- 5

The correct option is D 5 By inspection n=5 . ...

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Binomial Coefficients

If H 3+ n C n...

Question

If $^{n} P_{3} +^{n} C_{n - 2}$ = $14 n$ , then n =

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^{n} P_{3} +^{n} C_{n - 2} = 14 n,

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