Question: Why does Maple not evaluate the "easy" integral

The following integral is solved easily via a substitution. Why does Maple not evaluate it?


int(tan(x)^(1/3)*sec(x)^2, x)

int(tan(x)^(1/3)*sec(x)^2, x)

(1)

int(surd(tan(x), 3)*sec(x)^2, x)

int(surd(tan(x), 3)*sec(x)^2, x)

(2)

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