[" 8.Find the sum of first "51" terms of an AP whose second and third terms are "14" and "18],[" respectively."]

Find the sum of first 51 terms of an A.P. whose second and third terms are 14 and 18 respectively.

Find the sum of first 51 terms of an A.P whose second and third terms are 14 and 18 respectively.

Find the sum of first 51 terms of an AP whose second and third term are 14 and 18 respectively.

Find the sum of first 51 terms of the A.P. whose second and third terms are 14 and 18 respectively.

Find the sum of first 51 terms of an A.P. whose 2nd and 3rd terms are 14 and 18 respectively.

The first and the last term of an A.P are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum ? OR Find the sum of first 51 terms of an A.P whose 2nd term and 3rd term aer 14 and 18 respectively.

Find the sum of first 17 terms of an AP whose 4th and 9th terms are -15 and -30 , respectively.

Find the sum of first 17 terms of an AP whose 4th and 9th terms are -15 and -30 , respectively.

Find the sum of first 30 terms of an A.P. whose second term is 2 and seventh term is 22.