Q2. What is the formula used in Arithmetic Mean? Ans. Arithmetic Mean = Sum of all terms in the AP / Number of terms in the AP Q3. What is the formula used in the Sum of ‘n’ terms of an AP? Ans. Sum ...

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January 13, 2026 • A historian of modern China, Jung Chang turns the lens back on herself in her newest book to understand how she sees the world and why she writes about China today.