Explain signum & into functions

 

36 hrs past , no answer for above mentioned question.

 

 Kindly do the needful

Asked by yadav.ml | 25th Apr, 2014, 11:11: AM

Expert Answer:

Signum function is defined as :
 
f open parentheses x close parentheses equals open curly brackets table row cell minus 1 space space space space space space space x less than 0 end cell row cell 0 space space space space space space space space x equals 0 end cell row cell 1 space space space space space space x greater than 0 end cell end table close
A function f:P→Q is an into function, if there exists element in co-domain set, which has no pre-image in the domain set “P”.

 

Answered by  | 25th Apr, 2014, 02:59: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.