Advertisements
Advertisements
Question
First term a and common difference d are given below. Find the corresponding A.P.
a = 7, d = – 5
Solution
a = 7, d = – 5
A.P. = a, a + d, a + 2d, ...
= 7, 7 + (– 5), 7 + 2(– 5), ...
= 7, 2, – 3, ...
APPEARS IN
RELATED QUESTIONS
The 16th term of an A.P. is five times its third term. If its 10th term is 41, then find the sum of its first fifteen terms.
The 4th term of an A.P. is zero. Prove that the 25th term of the A.P. is three times its 11th term
Write first four terms of the A.P. when the first term a and the common difference d are given as follows:
a = -1.25, d = -0.25
Following are APs or not? If they form an A.P. find the common difference d and write three more terms:
0, -4, -8, -12, …
Write the next two terms of A.P. whose first term is 3 and the common difference is 4.
What is the common difference of an A.P. in which a21 – a7 = 84?
Write the sequence with nth term:
an = 3 + 4n
Common difference, d = ? for the given A.P., 7, 14, 21, 28 ........
Activity :- Here t1 = 7, t2 = 14, t3 = 21, t4 = `square`
t2 − t1 = `square`
t3 – t2 = 7
t4 – t3 = `square`
Therefore, common difference d = `square`
1, 6, 11, 16 ...... Find the 18th term of this A.P.
The eighth term of an AP is half its second term and the eleventh term exceeds one third of its fourth term by 1. Find the 15th term.
