If f(x) = ex g(x),g(0)=2,g ' (0)=1,then f ' (0) is equal to _______ .
1
3
2
0
2/1+x2
2x/1+x2
-2/1+x2
None of these
a+b+c
The derivative of an odd function is always __________ .
An odd function
An even function
Does not exist
Ler f(x) =exg(x),g(0) = 4,g ' (0)=2,then f ' (0) is ________ .
6
If y=t2 + t -1 , then dy/dx is equal to _______ .
2t+1
t2+t-1
not defined
it f(x) does not exist x→ 0+1
Lt f(x) doesnot exist x→0-
Lt x→0f(x) does not exist
Given f (x) = 4x8 , then
f(1/2)=f ' (-1/2)
f(-1/2) = f(1/2)
f ' (x) = f ' (-1/2)
f ' (1/2) = f ' (-1/2)
The derivative of elog x is _________ .
(log x )elog x
elog x
(log x )elog x -x
If y=log (Sec x + tan x ) ,then dy/dx=______ .
tan x
sec x
tan2 x
