Sum of First n Terms of an AP (Part 2) | Arithmetic Progressions| CBSE | Class 10 | Math
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- Q4. If the ratio of the sum of first m and n terms of AP is m²:n² show that the ratio of its mth and nth term is (2m-1);(2n-1)
- Q3. If the sum of the first m terms of an AP is n and first n terms is m then show that sum of its first (m+n) terms is - (m+n)
- Q2. If the sum of the first of an AP is the same as the sum of its first q terms (where p is not equal to q). Then show that the sum of its first (p+q) terms if zero.
- Q1. If the sum of first n,2n and 3n terms of AP be S₁,S₂ ,S₃ ,respectively, then prove that S₃=3(S₂ - S₁)