Final answer:
The values for e that have the same reference angles are 4.8 x 10^-11 and 4.9 x 10^-10.
Step-by-step explanation:
The values for e that have the same reference angles are 4.8 x 10^-11 and 4.9 x 10^-10.
Reference angles are the angles formed between the terminal side of an angle in standard position and the x-axis.
These two values have the same reference angle because they are in standard form and have the same coefficient, 4.8, and the same power of 10, -11 and -10.