" 5."lim_(x rarr pi)(1+cos x)/(tan^(2)x)

Evaluate the following limit: (lim)_(x rarr pi)(1+cos x)/(tan^(2)x)

Evaluate the following limit: (lim)_(x rarr pi)(1+cos x)/(tan^(2)x)

lim_(x rarr0)(1-cos2x)/(3tan^(2)x)

Lim_(x rarr pi/2)(cos x)/((pi)/(2)-x)

lim_ (x rarr pi) (1 + cos x) / (x-pi)

lim_(x rarr0)(cos x)/(pi-x)

lim_ (x rarr pi) (1 + cos x) / ((pi-x) ^ (2))

lim_(x rarr pi)sgn[tan x]

For a in R^(+) such that lim_(x rarr0)(1-cos ax)/(x^(2))=lim_(x rarr pi)(sin x)/(pi-x) then a=

For a in R^(+) such that lim_(x rarr0)(1-cos ax)/(x^(2))=lim_(x rarr pi)(sin x)/(pi-x) then the value of a is