Mathematics for IGCSE & O level - Indices 1 (Section 3 - No. 29)
Identify the correct statements about fractional indices.
a1/2 represents the square root of a.
a1/3 represents the cube root of a.
am/n represents the nth root of a raised to the power of m.
Fractional indices can only be used with positive integers.
Uitleg
Fractional indices represent roots. The denominator indicates the root, and the numerator indicates the power. The rules apply to different integers too.