Write the first four terms of the A.P. when its first term is – 5 and the common difference is – 3.

Write first four terms of the AP, when the first term a and the common difference d are given as follows: (i) a=10, d=10 (ii) a=-2, d=0 (iii) a=4, d =-3 (iv) a=-1, d=1/2 (v) a=-1.25, d= -0.25

If the first term of an A.P. is – 18 and its 10th term is zero, then find its common difference.

The sum of P terms of an AP is P^2 . Find the common difference.

The sum of n terms of an A.P is n^2 .Find the common difference.

Write the GP if the first term a=3, and the common ratio r=2.

If an A.P., the sum of 1st n terms is 2n^2 + 3n , then the common difference will

If S_n=n P+(n(n-1))/2Q ,w h e r eS_n denotes the sum of the first n terms of an A.P., then find the common difference.

The sum of first ten terms of an A.P. is 155 and the sum of first two terms of a G.P. is 9. The first term of the A.P. is equal to the common ratio of the G.P. and the first term of the G.P. is equal to the common difference of the A.P. Find the two progressions.

If the sum of the first 14 terms of an AP is 1050 and its first term is 10 , find the 20th term .

The first term of an A.P. is 5, the last term is 45 and the sum is 400. Find the number of terms and the common difference.