Math, asked by PrinceMP1, 1 year ago

In a G.P. the 1st term is 729 and the 7th term is 64. Find S7?

Answers

Answered by ap92220

2

Sum of GP is 2/3.
t1=729
t7=t1×r^6
64=729×r^6
r^6=64/729
r=2/3

PrinceMP1: find S7

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