Question

If the nth term of an AP is ( − 9 n + 4 ) , find its 14th term.

Answer 1

Step-by-step explanation:

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Answer 2

nth term of is ( − 9 n + 4 )

1st term will be (a) :- {-9(1) + 4} = -5

2nd term will be :- {-9(2) + 4} = -14

so common difference (d) = -14 -(-5) = -9

we know that:-

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

$a_{14} = - 5 + (14 - 1)( - 9)$

$a_{14} \: = - 122$

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