यदि \(\binom{n}{1}+\binom{n}{0}=21\) है तो (n) का मान क्या होगा?

If \(\binom{n}{1}+\binom{n}{0}=21\), what will be the value of (n)?

Explanation opens after your attempt

Correct Answer

B. (20)

Step 1

It gives (n+1=21). Therefore (n=20).

Step 2

The correct answer is B. (20). It gives (n+1=21). Therefore (n=20).

Step 3

यह (n+1=21) देता है। इसलिए (n=20) होगा।

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यदि \(\binom{n}{1}+\binom{n}{0}=21\) है तो (n) का मान क्या होगा? / If \(\binom{n}{1}+\binom{n}{0}=21\), what will be the value of (n)?

Correct Answer: B. (20). Explanation: यह (n+1=21) देता है। इसलिए (n=20) होगा। / It gives (n+1=21). Therefore (n=20).

Which concept should I revise for this Mathematics MCQ?

It gives (n+1=21). Therefore (n=20).

What exam hint can help solve this Mathematics question?

यह (n+1=21) देता है। इसलिए (n=20) होगा।