What is the general term of the sequence 3, 8, 13, 18, .....
What is the general term of the sequence 3, 8, 13, 18, ...?
5n - 2
5n + 2
5
5n
Correct answer is A
Given the sequence 3, 8, 13, 18, ... which is an arithmetic sequence
a = 3
d = T2 - T1 = 8 - 3 = 5
The general term of an A.P is:
Tn = a + (n - 1)d
⇒ Tn = 3 + (n - 1)5
= Tn = 3 + 5n - 5
∴ Tn = 5n - 2
The shadow of a pole 5√3m high is 5m. Find the angle of elevation of the sun. ...
A binary operation ⊕ defined on the set of real number is such that x⊕y = xy/...
Marks 1 2 3 4 5 Frequency 2 2 8 4 4 The table above show the marks obtained in a given test...
Find the 9th term of the arithmetic progression 18, 12, 6, 0, -6 ......... ...
Find the equation of a line perpendicular to line 2y = 5x + 4 which passes through (4, 2). ...
Divide the expression x3 + 7x2 - x - 7 by -1 + x2...
Find the length of a chord which subtends an angle of 90° at the centre of a circle whose radius...