Question

13) If 3,8,13 are in A.P. then the common difference is​

Answer 1

EXPLANATION

$commom \: difference = 8 - 3 = 13 - 8 = 5$

Answer 2

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$Here,\: First\: term\: a\: = 3\:$

$And\: common\: difference\:(d)\: = 5\:$

Now,

${t}^{n } = a + (n - 1)d$

$➥ {t}^{n } = 3 + (n - 1) \times 5$

$➥{t}^{n} = 3 + 5n - 5$

${t}^{n} = 5n - 2$

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