Summation of seriesMedium
Arithmetic Progression Term Difference
Let 
upto n terms. If the sum of the first six terms of an A.P. with first term –p and common difference p is 
, then the absolute difference between 20th and 15th terms of the A.P. is
upto n terms. If the sum of the first six terms of an A.P. with first term –p and common difference p is , then the absolute difference between 20th and 15th terms of the A.P. isSELECT ONE OPTION
Ask about this question