Answer:
5/a^2/c
Explanation:
5a^4/2c
apply opponent rule: a^-b=1/a^b
=5x1/4^2c
divide the numbers :4/2=2
=5x1/a^2c
multiply fractions: axb/c=axb/c
=1x5/a^2c
multiply the numbers: 1x5=5
5/a^2c
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