Answer: 56 / 729
Step-by-step explanation: (4 * 2 * 7) / (9^3)
It’s rational because the square root of 0.49 is 0.7
PART A
The geometric sequence is defined by the equation
To find the first three terms, we put n=1,2,3
When n=1,
When n=2,
When n=3
The first three terms are,
PART B
The common ratio can be found using any two consecutive terms.
The common ratio is given by,
PART C
To find
We substitute n=11 into the equation of the geometric sequence.
This implies that,