What is the seventh term of a sequence whose first term 1 and whose common ratio is 3?

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Answer 1 · 2016-04-02T11:16:25

the 7th term #a_7=729#

The formula for Geometric Progression for the nth term

#a_n=a_1*r^(n-1)#

Our given data : #a_1=1# and #r=3#

#a_n=a_1*r^(n-1)#

#a_7=(1)*(3)^(7-1)#

#a_7=(1)*(3)^6#

#a_7=729#

God bless....I hope the explanation is useful.