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

What are the first four terms formed by (a_n=3n)?

Answer and explanation

Correct answer: (3,6,9,12)

For the first four terms, take n=1,2,3,4. Using a_n=3n gives 3×1=3, 3×2=6, 3×3=9, and 3×4=12. Therefore, the correct sequence is (3,6,9,12). Option D also has a common difference of 3, but its first term is 4, so it does not follow this rule. Exam tip: For the first term of an nth-term rule, always substitute n=1.

Related tags

SequencesNth TermSequence RuleArithmetic ProgressionMultiples Of ThreeSequences And ProgressionsMathematicsClass 9 Mcq

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.