Chapter-5 ARTHIMETIC PROGRESSIONS

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Across
  1. 2. a+(n-1)d is ___ for nth term
  2. 4. Sum of first n terms = n/2[2a+(n-1)d]
  3. 5. AP stands for Arithmetic ___
  4. 10. AP with unlimited terms
  5. 11. Average of two numbers in AP
  6. 13. Adding all terms of AP
Down
  1. 1. d = a2-a1 is called ___
  2. 3. 2,4,6,8... is an ___
  3. 6. Ordered list of numbers
  4. 7. 'a' in an AP is ___ term
  5. 8. a+(n-1)d gives ___ term
  6. 9. AP with limited terms is ___
  7. 11. Formula for nth term
  8. 12. Part of sum formula: ___ [2a+(n-1)d]