Question

Check whether the following sequence are in A.P

1.) 9, 13, 17, 21, 25,....

★ No net copied answer..​

Answer 1

$\large\color{lime}\boxed{\colorbox{black}{Answer : - }}$

$t_1 = 9 \\ t_2 = 13 \\ t_3 = 17 \\ t_4 = 21 \\ t_5 = 25$

$t_2 - t_1 = 13 - 9 \\ \: \: \: = 4$

$t_4 - t_3 = 21 - 17 \\ = 4$

Therefore,

9, 13, 17, 21, 25 are in A.P