Math, asked by GAYATHRIMOHAN, 11 months ago

Solve the equation 1+4+7+10...........=287

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Answered by ankita6916

0

265.....................

Answered by lalchandzanwar321

0

this is an ap with a=1 d=3 and sn=287. so sn =nby2(2a(n-1)d and find n

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