# Fractional Exponent (Math-II)

A mathematics teacher bought a birthday cake for his son with the dedication

Happy Birthday!!!
(2 raise to 5/2 .(the dot means times) 2 raise to 3/4 divided by 2 raise to 1/4)th

How old is his son?

kindly help me...

1. Henry

N = 2^(5/2) * 2^(3/4)/2^(1/4).
N = 2^(13/4)/2^(1/4) = 2^(12/4)=2^3=8.

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