If `lim_(x rarr 0) (cos4x+a cos2x+b)/x^4` is finite then the value of `a,b` respectively

If lim_(x rarr0)((cos4x+a cos2x+b)/(x^(4))) is finite then the value of a,b respectively is finite

Lt_(x to 0) ((cos4x+a cos 3x+b)/(x^(4))) is finite then the values of a,b are respectively

If lim_(x rarr 0) ((cos 4x + a cos 2x+b)/(x^(4))) is finite, then the values of a and b are respectively.

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

If underset(x to 0)"Lt" ((cos 4x+a cos 2x+b)/(x^(4))) is finite, then the value of a, b are respectiveluy.

lim_(x rarr0)(1-cos4x)/(1-cos5x)

lim_(x rarr0)(1-cos4x)/(1-cos6x)

if lim_(x rarr0)(sin2x+a sin x)/(x^(3)) be finite,then the value of a is

If lim_(x rarr0)(a cos x+bx sin x-5)/(x^(4)) is finite the a=