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| 1. |
If the sum of sequence 2,5,8,11,.........Is 60100,the number of terms is |
| Answer» Here a=2d=3Sn=60100n/2(2a+(n-1)d)=60100n(2*2+(n-1)3)=60100*2n(4+3n-3)=120200n(3n+ | |