`lim_(x->0)(1-sqrt(cos2x)*root(3)(cos3x).....root(n)(cosnx))/x^2` has value `10` then value of `n` equal to

lim_(xto0)(sqrt(1-cos2x))/x

lim_(x to0)sqrt(1+cos2x)/x.......

lim_(xto2)(2-sqrt(x+2))/(root(3)(2)-root(3)(4-x))

lim_(xto0)(1-cos2x)/(2x^(2)) is

Find lim_(xrarr0) (sqrt(cos2x+1))/(x)= __________

lim_(xto0) ((1-cos2x)(3+cosx))/(xtan4x) is equal to

The value of lim_(xto0) (1-(cosx)sqrt(cos2x))/(x^(2)) is

(lim)_(xvec0^+)1/(xsqrt(x))("a t a n"^(-1)(sqrt(x))/a-btan^(-1)(sqrt(x))/b) has the value equal to (a-b)/3 b. 0 c. ((a^2-b^2))/(6a^2b^2) d. (a^2-b^2)/(3a^2b^2)

Find lim_(xto0) sqrt((1)/(2)(1-cos2x))/(x) if exists.