Which term of the AP: 121, 117, 113,……… is the first negative term? [Hint:Find n for a_(n) lt 0 ]

Which term of the A.P.: 121, 117, 113, ..... is its first negative term?

Which term of the AP: 121,117,113……. is its first negative term?

If the sum of a certain numbe of terms of the A.P. 25 ,22 ,19 …… is 116 . Find the last term .

The sum of the first three terms of an A.P is 33 . If the product of the first terms and third term exceeds the 2nd term by 29 then find the A.P . The pth qth and rth term of an A.P . Are a b and c respectively . Prove that a (q-r)+ b(r-P)+c(p-q)=0

The third term of an A.P. is 8. and the ninth term of the A.P. exceeds three times the third term by 2. Find the sum of its first 19 terms.

If the sum of the first n^(th) terms of an A.P is 4n-n^(2) , what is the first term (that is S_(1) ) ? What is the sum of first two terms? What is the second term? Similarly, find the 3^(rd) , the 10^(th) and the n^(th) terms.

The sum of the 4th and 8th terms of an AP is 24 and the sum of the 6th and 10th terms is 44. Find the first three terms of the AP.