Question

find the 10th term of the A.P whose sum of n term is given 2n²+3n².​

Answer 1

Answer:

Please refer to above attached picture.

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Answer 2

Answer:

n an Arithmetic Progression we can find the term value by the formula:-

Tn = Sn - Sn-1

Where n stands for term number.

We know Sum is n^2 - 3n

So,T10 = S10 - S9

= (10^2 - 10×3) - (9^2 - 9×3)

= (100 - 30) - (81 - 27)

= 70 - 54

= 16

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