1yup it shud be bcd....
f(x) = x/ (1 + |x|) is :
a) diff for all x.
b) diff for all except x=0.
c) conituous for all x.
d) cont for all x but not diff at x=0.
am getting a and c ....
pls ans guys...
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9 Answers
62it is continuous at all x...
bcos both the numerator and deno are continuous..
and deno is not equal to zero!
now for differentiablity we have to see f(0)
f(0) = 0
f'(0) = lim h->0 f(h)-f(0)/h
= lim f(h)/h
h->0
= lim 1/(1+|h|)
h->0
hence ur answer is correct :)
39no , no, i am reading inorganic, so mind not working, please forgive me.
1ohk thanx bhaiya :)
woh book me ans hai b aur c ... !#$$#%$!!!!!
so i thot ki main poora diff bhool hi gayi :P waise kal se hi bhool gayi thi :P
39phir toh mathlab mera dimaag kaam karaa hain, bhaiyan, aap mujhe dara diye.......