Question

What is the common difference of an AP in
which a39 - a28 = 33?​

Answer 1

Step-by-step explanation:

Let a be the first term

Common difference = d

So

a39 - a28 = 33 gives

( a +38d) - (a+27d) = 33

11d = 33

d = 3

So the common difference = 3

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Answer 2

Answer:

a+38d-a-27d=33

11d = 33

d = 3

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