Question

..WHAT IS ARTHMETIC PROGRESSION ..?
ANSWER IN DETAIL☺️​

Answer 1

• An arithmetic progression or AP is a list of numbers in which each term differs from its preceding term by a constant number, except the first term. This fixed number is known as the common difference(d) of the A.P. This common difference can be positive, negative or even zero.
• Consider the series having its first term to be ‘a’ and the common difference to be ‘d,’ then the nth term of the series is given as,
• an = a + (n−1)d
• The series is given as a, a+d, a+2d,…………, a + (n−1)d
• Arithmetic Progression Class 10 Notes Chapter 5
• Sum of n terms of an A.P
• The sum of n terms of an A.P. is given as:
• Sn, = n⁄2(2a + (n−1)d)
• Or, Sn = n⁄2(a + a + (n−1)d)= n⁄2(a + an)
• where an is the nth term of an A.P.

Answer 2

Arthamatic Progression is a special type of series which has a common difference between two adjacent numbers

for example (d)...

thus the series is :

a , a+d ,a+2d, .......a+nd.

where a = first number of series

n= no.of terms