Math, asked by shetyemanashri, 1 day ago

If the common difference of an AP is -12 whose nth term is an, then find the value of a20 - a17

Answers

Answered by hindustanipoet

1

Answer:

The value of given question is -36

Step-by-step explanation:

Given,

d = -12

Formula,

an = a + (n-1)d

Therefore,

a20 - a17 = (a + 19d) - (a + 16d)

=3d = 3(-12) = -36

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