; 07-18-2015 08:25 PM
Prove that f(x)=x^2 is differentiable in... ( ... ... 2016
(( )) ()(... 2 ( ) ( )
(07-19-2015), (07-19-2015), (07-18-2015), (07-18-2015), (07-18-2015)
2-1-3 d a , b (c) d
......prove
2
: (1) 2012 1953
: 1 (0 1 )
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