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Q.

The nth term of an AP is (7n - 4). The common difference is [[1]].


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answer is 7.

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Detailed Solution

The nth term of an AP is (7n – 4). The common difference is 7.
It is given that, the nth term of an AP is (7n-4).
a n =7n−4
Substitute n = 1 in the above equation,
a 1 =7(1)−4 =3
a 2 =7(2)−4 =10
The common difference is given by,
d= a 2 − a 1
=10−3 =7
The common difference is 7.
 
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