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davar55 · 2004-08-14, 16:20

The function is infinite for x > 1,
is not well defined for x <= 0,
and is constantly 1 for 0 < x <= 1.

Hence the derivative is only defined for 0 < x < 1,
and equals zero there !!

2004-08-14, 16:20	#2
davar55 May 2004 New York City 1000010001000₂ Posts	The function is infinite for x > 1, is not well defined for x <= 0, and is constantly 1 for 0 < x <= 1. Hence the derivative is only defined for 0 < x < 1, and equals zero there !!