Question

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3. first six terms of 3 + 9 + 27 + ...​

Answer 1

first six terms are 3+9+27+81+243+729

Explanation:

Given:

`3+9+27+.....`

From above equation we can see that the above 3 term of the equation are in format.

`3^(1) +3^(2)+3^(3)+....`

Now assuming for next 3 in same format we conclude it with.

`3^(1) +3^(2)+3^(3)+3^(4)+3^(5)+3^(6)`

which give the answer for the first 6 term as stated below.

`3+9+27+81+243+729`