Question

What is is value of a_14 (14th term) , if A.P is 9,14,19....

Answer 1

$\sf a_{n} = a +( n - 1)d\\ \\\sf \: <strong>a</strong> = 9 \: , <strong>n</strong> = 14 \: , <strong>d</strong> = 14 - 9= 5 \\ \\ \sf \: a_{n} \: = 9 + (14 - 1)( 5) \\\\ \sf \: a_{n} = 74$

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