Let `f(x)={(72^x -9^x- 8^x +1)/(sqrt2-sqrt(1+cosx)) ; x != 0 and k log2 log3 ; x=0` .If f is continuous functioin at `x=0` , then k=

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)={{:(,(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 (A) 16sqrt(2)log2log3 (B) 16sqrt(2)ln6 (C) 16sqrt(2ln2In3 (D) none of these

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 (A) 16sqrt(2)log2log3 (B) 16sqrt(2)ln6 (C) 16sqrt(2ln2In3 (D) none of these

If f(x)=log(sec^(2)x)^(cot^2x) for xne0 and k for x=0 is continuous at x=0 , then k is

If f(x)={(sqrt(1+kx)-sqrt(1-kx))/(x) for 1<=x<0 and 2x^(2)+3x-2f or 0<=x<=1 is continuous at x-0 then k

If f(x)={(1-cosx)/(x^2)\ \ \ ,\ \ \ x!=0k\ \ \ ,\ \ \ x=0 is continuous at x=0 , find kdot

If f(x)={(1-cosx)/(x^2)\ \ \ ,\ \ \ x!=0k\ \ \ ,\ \ \ x=0 is continuous at x=0 , find kdot