NCERT books are considered the best source to prepare for the board as well as competitive exams. To make more utilisation of these books students must make it a habit to read the NCERT books ...

1 3, 2 3, 3 3, 4 3, 2. Arithmetic Progression (AP): It is a list of numbers in which each term is obtained by adding a fixed number to the preceding term except the first term. 3. Common difference (d ...