Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

If \(S_n\) is the sum of the first \(n\) natural numbers, which relation correctly represents the increase in the sum when moving from \(n\) to \(n+1\) terms?

Answer and explanation

Correct answer: \(S_{n+1}-S_n=n+1\)

When the sum is extended to \(n+1\) terms, only the new number \(n+1\) is added to the first \(n\) terms. Hence, \(S_{n+1}-S_n=n+1\). Option B gives the previous last term, not the added term. Exam tip: identify the newly included term.

Related tags

Natural NumbersSequenceProgressionSum Of N TermsMathematical ReasoningSum Of First N Natural NumbersSequences And ProgressionsMathematics

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.