( \frac{(n+3)!}{(n+1)!} ) का सही विस्तार कौन सा है?

Which is the correct expansion of ( \frac{(n+3)!}{(n+1)!} )?

Explanation opens after your attempt
Correct Answer

A. ( (n+3)(n+2) )

Step 1

Concept

((n+3)!=(n+3)(n+2)(n+1)!), so two factors remain. Expand only up to the denominator factorial.

Step 2

Why this answer is correct

The correct answer is A. ( (n+3)(n+2) ). ((n+3)!=(n+3)(n+2)(n+1)!), so two factors remain. Expand only up to the denominator factorial.

Step 3

Exam Tip

((n+3)!=(n+3)(n+2)(n+1)!), इसलिए दो गुणक बचते हैं। नीचे वाले फैक्टोरियल तक ही विस्तार करें।

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Mathematics Answer, Explanation and Revision Hints

( \frac{(n+3)!}{(n+1)!} ) का सही विस्तार कौन सा है? / Which is the correct expansion of ( \frac{(n+3)!}{(n+1)!} )?

Correct Answer: A. ( (n+3)(n+2) ). Explanation: ((n+3)!=(n+3)(n+2)(n+1)!), इसलिए दो गुणक बचते हैं। नीचे वाले फैक्टोरियल तक ही विस्तार करें। / ((n+3)!=(n+3)(n+2)(n+1)!), so two factors remain. Expand only up to the denominator factorial.

Which concept should I revise for this Mathematics MCQ?

((n+3)!=(n+3)(n+2)(n+1)!), so two factors remain. Expand only up to the denominator factorial.

What exam hint can help solve this Mathematics question?

((n+3)!=(n+3)(n+2)(n+1)!), इसलिए दो गुणक बचते हैं। नीचे वाले फैक्टोरियल तक ही विस्तार करें।