" 9."f(x)={[(x)/(|x|)," if "x<0],[-1," if "x>=0]

If f(x)={:{((x)/(|x|)", for " x!=0),(c", for " x=0):} , then f is

If f(x) = {:{(x/(|x|)" for "x != 0 ),(0 " for " x = 0 ):} , find Lim_(x to 0 ) f(x)

If f(0)=0, f(1)=1, f(2)=2 and f(x)=f(x-2)+f(x-3) " for " x=3, 4, 5, ………….., then f(9)=

If f(x)=sgn(x)={(|x|)/(x),x!=0,0,x=0 and g(x)=f(f(x)) then at x=0,g(x) is

If f(x)=sgn(x)={(|x|)/x,x!=0, 0, x=0 and g(x)=f(f(x)), then at x=0,g(x) is

f(x) = ( x^(2))/(|x|) , x ne 0 f (0) = 0 at x = 0 , f is

If f(x) is continuous at x=0 , where f(x)={:{((9^(x)-9^(-x))/(sin x)", for " x!=0),(k", for " x=0):} , then k=

" If "f(x)=min{|x^(2)-1|,|x|}," then number of extremums of "f(x)" in "(-0.9,1.1)" is "

" If "f(x)" is a polynomial in "x(>0)" satisfying the equation "f(x)+f(1/x)=f(x)f(1/x)" and "f(2)=9" ,then "f(3)" -,"