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 is the common difference in the sequence (2a,2a-5,2a-10,\ldots)?

Answer and explanation

Correct answer: \(-5\)

The common difference is found by subtracting a term from the next term: \((2a-5)-2a=-5\). Also, \((2a-10)-(2a-5)=-5\), confirming that the difference is constant. Each next term decreases by 5, so the common difference is \(-5\); \(5\) is only the magnitude of the decrease. Exam tip: always keep the sign while writing the common difference.

Related tags

Arithmetic ProgressionCommon DifferenceAlgebraic SequencesNegative DifferenceClass 10 MathematicsIntroduction To Aps And Common Difference.Introduction To Aps And Common DifferenceArithmetic Progressions (Ap)

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.