1.

The common difference of the A.P. b1,b2,.....bm is 2 more than the common difference of A.P. a1,a2,.....an. If a40=−159, a100=−399 and b100=a70, then b1 is eqaul to

Answer»

The common difference of the A.P. b1,b2,.....bm is 2 more than the common difference of A.P. a1,a2,.....an. If a40=159, a100=399 and b100=a70, then b1 is eqaul to



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