JEE MATHEMATICS MCQ: COMBINATIONS

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Consider the following statements.

I.

{ }^n C_r+2 \, { }^n C_{r-1}+{ }^n C_{r-2}={ }^{n+2} C_r

II.

{ }^n C_p={ }^n C_q \Rightarrow p=q

p+q=n

Choose the correct option.

View answer and explanation

Correct option: C

Both are true

Option C is correct because both statements are true. Statement I is a combinatorial identity, and Statement II describes the condition for equality of combinations.

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