Advertisements
Advertisements
Question
Write an A.P. whose first term is a and common difference is d in the following.
a = –1.25, d = 3
Solution
a = –1.25, d = 3
First term = a = –1.25
Second term
= –1.25 + 3
= 1.75
Third term
= 1.75 + 3
= 4.75
∴ The A.P. is –1.25, 1.75, 4.75 and so on ...
APPEARS IN
RELATED QUESTIONS
Find the sum of the following arithmetic progressions: 50, 46, 42, ... to 10 terms
In an A.P., if the 5th and 12th terms are 30 and 65 respectively, what is the sum of first 20 terms?
If (2p +1), 13, (5p -3) are in AP, find the value of p.
Find an AP whose 4th term is 9 and the sum of its 6th and 13th terms is 40.
Find the sum of all natural numbers between 200 and 400 which are divisible by 7.
The nth term of an AP is given by (−4n + 15). Find the sum of first 20 terms of this AP?
Divide 207 in three parts, such that all parts are in A.P. and product of two smaller parts will be 4623.
Find where 0 (zero) is a term of the A.P. 40, 37, 34, 31, ..... .
The sum of first n terms of an A.P. is 3n2 + 4n. Find the 25th term of this A.P.
Write the value of x for which 2x, x + 10 and 3x + 2 are in A.P.
Q.1
Q.18
Which term of the AP 3, 15, 27, 39, ...... will be 120 more than its 21st term?
How many terms of the A.P. 27, 24, 21, …, should be taken so that their sum is zero?
In an A.P. (with usual notations) : given d = 5, S9 = 75, find a and a9
Find second and third terms of an A.P. whose first term is – 2 and the common difference is – 2.
Shubhankar invested in a national savings certificate scheme. In the first year he invested ₹ 500, in the second year ₹ 700, in the third year ₹ 900 and so on. Find the total amount that he invested in 12 years
The sum of the first 15 multiples of 8 is ______.
Solve the equation
– 4 + (–1) + 2 + ... + x = 437
Find the sum of first 'n' even natural numbers.
