Xavier House Cap stop dubbing 1. The general equation of an AP is given as, , ---(I) , Making a subject of formula in both, and Therefore; Gathering like terms; hence: Putting . in (I) , Hence: , the first term The sum of n terms of an AP is given as, ---(II) The sum of n terms of an Arithmetic Progression can also be represented by , . i) ii) . 1. a=8 Common difference (d) = = 44 - 38 = 6. For A, n=2 For B, n=3 For C, n=4 For D, n=5 3The nth term of a Geometric Progression is given as Using Laws of Indices Therefore;