Question

signum function क्या हैं

Answer 1

Signum function is defined from real numbers to real numbers. The domain of the signum function is mathematics is complete real numbers but range of the function restricts only in 3 results : (-1,0,1). And there are condition when the range is -1, when 0 or when 1. ... F(x) = IxI/x where x never be 0, and x = real number.

Answer 2

$\textbf{Answer is in Attachment !}$