यदि (S_n=\frac{n}{2}[2a+(n-1)d]), (a=9), (d=1), और (n=14) है, तो \(S_n\) का मान क्या है?

If (S_n=\frac{n}{2}[2a+(n-1)d]), (a=9), (d=1), and (n=14), what is the value of \(S_n\)?

Explanation opens after your attempt
Correct Answer

A. (217)

Step 1

Concept

Substituting gives (S_{14}=\frac{14}{2}(18+13)=217). In questions with simple differences, calculate carefully.

Step 2

Why this answer is correct

The correct answer is A. (217). Substituting gives (S_{14}=\frac{14}{2}(18+13)=217). In questions with simple differences, calculate carefully.

Step 3

Exam Tip

मान रखने पर (S_{14}=\frac{14}{2}(18+13)=217)। सरल अंतर वाले प्रश्न में गणना ध्यान से करें।

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यदि (S_n=\frac{n}{2}[2a+(n-1)d]), (a=9), (d=1), और (n=14) है, तो \(S_n\) का मान क्या है? / If (S_n=\frac{n}{2}[2a+(n-1)d]), (a=9), (d=1), and (n=14), what is the value of \(S_n\)?

Correct Answer: A. (217). Explanation: मान रखने पर (S_{14}=\frac{14}{2}(18+13)=217)। सरल अंतर वाले प्रश्न में गणना ध्यान से करें। / Substituting gives (S_{14}=\frac{14}{2}(18+13)=217). In questions with simple differences, calculate carefully.

Which concept should I revise for this Mathematics MCQ?

Substituting gives (S_{14}=\frac{14}{2}(18+13)=217). In questions with simple differences, calculate carefully.

What exam hint can help solve this Mathematics question?

मान रखने पर (S_{14}=\frac{14}{2}(18+13)=217)। सरल अंतर वाले प्रश्न में गणना ध्यान से करें।