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| 1. |
Find the 15th term and 22nd term of the AP x+b,x+3b,x+5b |
| Answer» The Given Series : x+b, x+3b, x + 5b,...This is an A.P.∴ First Term, a = x+bDifference, d = x+3b - (x+b) = x+3b - x-b= 2bNow, The General Term ,= a+(n-1)d= x+b+(n-1)2b= x+b+(2n-2)b= x+b(1+2n-2)= x+b(2n-1)a = x+b | |