Q. 355.0( 1 Vote )

Match the questions given under Column I with their appropriate answers given under the Column II.


Answer :

(a) Given:

Here, , and


Hence, the given numbers is in G.P with common ration 1/4


(a) (iii)


(b) Given: 2, 3, 5, 7


Here, a2 – a1 = 3 – 2 = 1


a3 – a2 = 5 – 3 = 2


a4 – a3 = 7 – 5 = 2


a2 – a1 a3 – a2


Hence, it is not in AP


Now, we will check the ratio


,


So,


So, it is not a G.P


Hence, it is a sequence


(b) (ii)


(c) 13, 8, 3, -2, -7


Here, a2 – a1 = 8 – 13 = -5


a3 – a2 = 3 – 8 = -5


a4 – a3 = -2 – 3 = -5


a2 – a1= a3 – a2


Hence, it is an AP


(c) (i)



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