lim_(n rarr0)(tan(a+2n)-2tan(a+n)+)/(n^(2))

lim_(x rarr0)(tan x)/(x)

lim_(x rarr0)(tan x)/(x)

lim_(n rarr0)n*sin(1/n)

lim_(h rarr0)(tan(a+2h)-2tan(a+h)+tan a)/(h^(3))=

lim_(n rarr0)(2-cot x)

If (lim_(x rarr0)({(a-n)nx-tan x}sin nx)/(x^(2))=0 where n is nonzero real number,the a is 0 (b) (n+1)/(n)( c) n(d)n+(1)/(n)

lim_ (x rarr0) (tan mx) / (tan nx)

lim_(h rarr0)(n^(2)(tan^(-1)k)/(n)-k^(2)(tan^(-1)n)/(k))/(h)

lim_(h rarr 0) (tan (a + 2h) - 2 tan (a + h) + tan a)/(h^(2)) is :