Question

12. For an AP, if 18 - 14 = 32, then find the
common difference d.
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Answer 1

Answer:

an = a + (n-1)d

where a is a first term and d is a common difference

a18 - a14 = 32

a + 17d - a - 13d = 32

4d = 32

d = 32/4

d = 8

8 is a common difference

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