1.

Which of the following forms an AP? If they form an AP, then write the next two items? (i) 4,10,16,22,….. , (ii) 1,-1,-3,-5,……, (iii) -2,2,-2,2,-2,……… (iv) 1,1,1,2,2,2,3,3,3,……, (v) x,2x,3x,4x,…………

Answer»


Answer :(i) forms an AP
next forms are 22+6 = 28 and 28 + 6 = 34
(ii) is AP.
next TWO terms are: `-7` and `-9`
(iii) not an AP
(iv) not an ap
(v) is an AP
two terms are `4X +x=5x` and `5x+x=6x`


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