Answer:
first six terms are 3+9+27+81+243+729
Step-by-step explanation:
Given:
[tex]3+9+27+.....[/tex]
From above equation we can see that the above 3 term of the equation are in format.
[tex]3^{1} +3^{2}+3^{3}+....[/tex]
Now assuming for next 3 in same format we conclude it with.
[tex]3^{1} +3^{2}+3^{3}+3^{4}+3^{5}+3^{6}[/tex]
which give the answer for the first 6 term as stated below.
[tex]3+9+27+81+243+729[/tex]
