2025 · Q22
If a^b = b^a, then what is the value of [the exact expression could not be verified]?
Elementary MathematicsAlgebra
- A1
- Ba
- Cb
- Dab
Explanation
The stem gives a^b=b^a and asks for the value of an expression that could not be recovered (options 1, a, b, ab). The stored key A (1) agrees with the published coaching key (PW, CDS 2 2025 Set A). Note: key disputed - independent verification inconclusive.