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TrillTin1999
TrillTin1999 TrillTin1999
  • 30-06-2016
  • Mathematics
Answered

in a geomatric sequence, a5= 36 and a7=16

Verified Answer :

caylus
caylus caylus
  • 30-06-2016

Hello,

\(a_{5}=36\)
\(a_{6}=36*r\)
\(a_{7}=36*r^2=16\)
==>r²=16/36=4/9

==>r=2/3 or r=-2/3


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