Advertisements
Advertisements
प्रश्न
Find the 19th term of an A.P. – 11, – 15, – 19, ...
उत्तर
A.P = – 11, – 15, – 19, ...
a = – 11
d = t2 – t1 = – 15 – (– 11)
= – 15 + 11
= – 4
n = 19
∴ tn = a + (n – 1)d
t19 = – 11 + (19 – 1)(– 4)
= – 11 + 18 × – 4
= – 11 – 72
= – 83
APPEARS IN
संबंधित प्रश्न
The nth term of a sequence is 3n – 2. Is the sequence an A.P. ? If so, find its 10th term
State whether the following sequence is an Arithmetic Progression or not:
3, 6, 12, 24,......
Which of the following sequences are arithmetic progressions? For those which are arithmetic progressions, find out the common difference.
p, p + 90, p + 180 p + 270, ... where p = (999)999
Find n if the given value of x is the nth term of the given A.P.
25, 50, 75, 100, ...; x = 1000
Which term of the A.P. 3, 10, 17, ... will be 84 more than its 13th term?
The first term and the common difference of an A. P. is 10,000 and
2000 resectively. Find the sum of first 12 terms of the A.P.
Find the first term and common difference of the Arithmetic Progressions whose nth term is given below
tn = – 3 + 2n
The nth term of an A.P. is given by an = 3 + 4n. The common difference is ______.
The angles of a triangle are in AP. The greatest angle is twice the least. Find all the angles of the triangle.
The sum of the squares of five consecutive natural numbers is 1455. Find the numbers.
