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Recent questions tagged telegram-46251

(chatquestion)...999 1000 0-|1-2)"(3 4) (3 U) 10. (c) . P 20 6. (c): 1, of 1, 8, 21, 40, 65, .... ,-1+7+13 + 19 + 25 + Which represent the sum of r terms of an A.P. with fire 1 and common difference is given by %3D 1125 ******* . ar, ar, ar to r terms 640= 12 term =6. G.P. 11. (c 1, = 12 x1+(r-1)6} = r(3r - 2) 10 .1, of given series: r(3r-2) 3r-2 3(r-1)+ 1-a %3D %3D r-1 %3D r-1

asked Jan 20, 2020 by balaji.thirumalai

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