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(A) Solve the following questions.(Any iwoThe first term of an A. P. is 5 and the commondifference is 4. Complete the following activity andfind the sum of the first 12 terms of the A. P.a = 5, d = 4, 5,2 = ?Sn = 0S = 12 [10 + |
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Answer» S=12÷2{2*5(12-1)4} S=6{10*11*4} S=6{440} S=2640 |
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