If `f(x)={{:(,(36^(x)-9^(x)-4^(x)+1)/(sqrt2-sqrt(1+cos x)), x ne 0),(,k,x=0):}` is continuous at x=0, then k equals

If f(x)={(36^x-9^x-4^x+1)/(sqrt(2)-sqrt(1+cosx)),x!=0 \ \ \ \k ,x=0 is continuous at x=0, then k equal to

If f(x) = {{:(x cos 1/x, x ne 0),(k ,x =0):} is continous at x=0, then

f(x) = {((sin x)/(x),,x,ne,0),(k-1,,x,=,0):} is continuous at x = 0, then k is :

If f(x)={(x^(k) sin((1)/(x))",",x ne 0),(0",", x =0):} is continuous at x = 0, then

If f(x) = {{:(sin1/x, x ne 0),(k, x =0):} , is continous at x=0, then k is equal to-

If f(x)={((1-cos x)/(x)",",x ne 0),(k",",x=0):} is continuous at x = 0, then the value of k is

If f(x)={{:(,(sqrt(x+1)-1)/(sqrtx),"for "x ne 0),(,k, for x=0):} and f(x) is continuous at x=0, then the value of k is