Question

The sum of the AP 2,7,12,….to 10 terms

A) 180

B) 110

C) -180

D) -170​

Answer 1

Answer:

Thus, the sum of the 10 terms of the given AP is 245.

Answer 2

Answer:

We will use the formula of sum of n terms of the arithmetic progression A.P., that is, Sn=n2(2a+(n−1)d), where a is the first term and d is the common difference. We know that n=10. Thus, the sum of the 10 terms of the given AP is 245.

Step-by-step explanation:

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