Yes, they are all equal to each other
Answer: Divide 2 by 6- 0.3 with a bar over the 3, Step-by-step explanation: 0.3 with a bar over the 3 is the decimal form of 2/6
The denominator in each term of the series is a square number, but neither

nor

are squares. So none of (1), (2), and (4) can be correct. The answer must be (3).