Question

find the 15th term of the AP:2,7,12.....​

Answer 1

Answer:

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Answer 2

Answer:

15th term = 72

Step-by-step explanation:

a = 2

d = $a_{2}$ - $a_{1}$

  = 7 - 2

  = 5

$a_{15}$ = a + (n-1)d

    = 2 + (15 - 1)5

    = 2 + 14 × 5

    = 2 +70

    = 72