Given a3 = 75, S10 = 120, find ‘d’ and a10.
Here, a3 = 15
S10 = 120
We know that,
Solving (i) and (ii)
5d = -6
Here, a3 = 15
S10 = 120
We know that,
Solving (i) and (ii)
5d = -6
Write first four terms of the AP, when the first term a and the common difference d are given as follows:
a = –2, d = 0
Write first four terms of the AP, when the first term a and the common difference d are given as follows:
a = 4, d = – 3
Write first four terms of the AP, when the first term a and the common difference d are given as follows:
a = – 1.25, d = – 0.25
For the following APs, write the first term and the common difference
3, 1, – 1, – 3, . . .
For the following APs, write the first term and the common difference
– 5, – 1, 3, 7, . . .
For the following APs, write the first term and the common difference
0.6, 1.7, 2.8, 3.9, . . .
Mock Test Series