Tamil Nadu Board Solutions for Chapter: Numbers And Sequences, Exercise 15: Progress Check

The difference between any two consecutive terms of an A.P. is _____.

If $a$ and $d$ are the first term and common difference of an $\mathrm{A}.\mathrm{P}.$ then the $t_8=$ _____.

If $t_n$ is the $n^{th}$ term of an AP, then $t_{2n}-t_n$ is _____ $\times$ common difference.

If $t_n$ is the $n^{th}$ term of an AP, then $t_{2n}-t_n$ is _____.