Math, asked by Pinky949, 1 year ago

The 4th term of a G.P. is 16 and the 7th term is 128. Find the first term and common ratio of the series

Answers

Answered by Anonymous
35
ar³=16

ar^6=128

on dividing

r³=8
r=2

substituting it in 1st equation
ar³=16
8a=16
a=2


Answered by Anonymous
25
this is the answer ...hope it will help
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