1-3-5,Trihydroxybenzene   NH4OH        ??

plz explain?????

f(x) = {ln(1+ax) -ln (1-bx)} / x  is not defined at x=0. what value shld be givn to f at x=0 to make it continuous at x=0

a) a-b

b) a+b

c) ln a + ln  b

d) nono of these

the domain of derivative of  the function

f(x)=   , if |x|  1

        1/2 (|x|-1), if |x| > 1

a) R - {0}

b) R - {1}

c)R - { -1}

d) R - { -1, 1}

if f is a differentiable function satisfying f(1/n)= 0 for all n 1,n integers, then

a) f(x)=0

b) f '(0)=0=f(0)

c)f(0)=0 but f '(0) not necessarily zero

d) | f(x) | 1, x  (0, .1]

Let f be twice differentiable function satisfying f(1)=1, f(2)=4, f(3)=9 , then:

a) f ''(x)= 2 for x  (R)

b) f '(x)=5=f ''(x),for some x (1,3)

c) there exists at least one x (1,3) sich that f '(x)=2

d) none of these

since it's a strong base,it do elimination........