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Shreyans Sharma Grade: 11
        

In a G.P., the product of first four terms is 4 and the second term is the reciprocal of the fourth term. Show that the sum of infinite terms of the G.P. is -8, -8/3, 8/3, 8 

7 years ago

Answers : (1)

iit jee
9 Points
										

let 4 nos be a/r2,a/r,ar,ar2.


a= 4


a = 21/2


ar2 = r/a


r = 1/2


sum of infinite terms of GP = a/1-r = 8 

7 years ago
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