" (iv) "lim_(x rarr0)(1-cos x-cos2x-cos3x)/(x^(2))

lim_(x rarr0)(1-cos x sqrt(cos2x))/(x^(2))

lim_(x rarr0)[cos x]is

lim_(x rarr0)((1-cos x)/(1-cos3x))

lim_(x rarr0)(1-cos x)/(x)

lim_(x rarr0)(cos4x-4cos2x+3)/(x^(4))=

lim_(x rarr0)(cos x)^(cot x)

If lim_(x rarr0)(1-cos x*cos2x*cos3x...cos nx)/(x^(2)) has the value equal to 263, find the value of n ( where n in N)

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

lim_(x rarr 0) (cos 9x - cos 7x )/(x^(2)) =

lim_(x rarr0)(cos x)/(x+2)