Question

Ll3. first six terms of 3 + 9 + 27 + ...​

Answer 1

Answer:

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

Step-by-step 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.

$3+9+27+81+243+729$