Sunday, 9 June 2013

Show that the Signum Function f : R→R, given by 1, if 0 ( ) 0,if 0 –1, if 0 x f x x x > ⎧⎪ = = ⎨⎪ ⎩ < is neither one-one nor onto.

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Show that the Signum Function f : R→R
 neither one-one nor onto.   below box
 
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