x^(4)-(e^(tan x)-e^(x))/(tan x-x)

underset(x to 0)"Lt" (e^(tan x)-e^(x))/(tan x-x)=

Let f(x)=(e^(tan x)-e^(x)+ln(sec x+tan x)-x)/(tan x-x) be a continuous function at x=0. The value f(0) equals

e^(tan^(-1)x)log(tan x)

Let f (x)= (e ^(tan x) -e ^(x) +ln (sec x+ tan x)-x)/(tan x-x) be a continous function at x=0. The value of f (0) equals:

lim_(x rarr0)(e^(x)-e^(x sec x))/(x+tan x) is equal to

tan (e^x+5)

lim_(x rarr0)(e^(x)+log{(1-x)/(e)})/(tan x-x) equals

int e^(tan^(-1)x)(1+x+x^(2))d(cot^(-1)x) is equal to -e^(tan^(-1)x)+c(b)e^(tan^(-1)x)+c-xe^(tan^(-1)x)+c(d)xe^(tan-1)x+c