" Let "f(x)=3x^(2)sin(1)/(x)-x cos(1)/(x),x!=0,f(0)=0,f((1)/(pi))=0," then which of the following is/are not correct."

Let f'(x)=3x^(2)sin((1)/(x))-x cos((1)/(x)), if x!=0,f(0)=0 and f((1)/(pi))=0 then

f(x)=(sin^(-1)x)^(2)*cos((1)/(x))ifx!=0;f(0)=0,f(x)

f(x)={x^(2)cos((1)/(x)),x<0 and 0,x=0 and x^(2)sin((1)/(x)),x<0 then which of the following is (are) correct?

If f'(x)=3x^(2)sin(1/x)-x cos(1/x) ,x!=0 ,f(0)=0 then the value of f((1)/(pi)) is

If f'(x)=3x^(2)sin x-x cos x x!=0 f(0)=0 then the value of f((1)/(pi)) is

If f'(x)=3x^(2)sin x-x cos x ,x!=0 f(0)=0 then the value of f((1)/(pi)) is

Let f'(x)=3x^2sin1/x-xcos1/x , if x!=0\ ; f(0)=0 and f(1//pi)=0 then: f(x) is continuous at x=0 f(x) is non derivable at x=0 f'(x) is continuous at x=0 f'(x) is non derivable at x=0

Let f(x)={x^(2)|(cos)(pi)/(x)|,x!=0 and 0,x=0,x in R then f is

If f(x)=(sin^(- 1)x)^2*cos(1/ x)"if"x!=0;f(0)=0,f(x) is continuous at x= 0 or not ?