Question

31st term of an ap whose first two terms are - 3 and 4 is​

Answer 1

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Answer 2

Answer:

$a31 = a + 30d$

So, We have the direct Formula.

But we need to find common difference (d) first.

d=4-(-3)

=7

So,

$a31 = - 3 + 30(7) \\ = - 3 + 210 \\ = 207$

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