`f + g*f – g, f, g , alpha` functions from R to defined by
(i) `(f+g)(x) = f(x) + g (x) = x + |x|= {{:(0″ ,”x le 0),(2x” ,”xge 0):}`
(ii)`(f-g)(x) = f (x) – g (x) = x – |x| = {{:(2x”,”x le 0),(0″,” xge 0):}`
(iii)` (f*g)(x) = f(x) * g(x) = x |x| = {{:(-x^(2)”,”xle0),(x^(2)”,” x”,” ge 0):}`
(iv)` (alpha.f)(x) = alpha.f (x) = alpha x`
(v) ` f/g : R -{0} to R`में फलन है ।
`(f/g)(x)=(f(x))/(g(x)) = x/|x|={{:(-1″,” xlt 0),(1″,” x gt 0):}`