Answer:
The answer tot he question provided is 25.
The numerator could be written a⁴/⁵
The denominator could be written a²/³
Now solve ( a⁴/⁵) / (a²/³) ==> a⁽⁴/⁵ ⁻²/³) = a⁽²/¹⁵)
This is the simplest way
Answer : AB and DE are the secants
Explanation: Because they both intersect the circle in exactly 2 points
4 x (n + 20), pretty simple. :)
