For every twice differentiable function `f: R->[-2,\ 2]` with `(f(0))^2+(f^(prime)(0))^2=85` , which of the following statement(s) is (are) TRUE? There exist `r ,\ s in R` where `roo)f(x)=1` (d) There exists `alpha in (-4,\ 4)` such that `f(alpha)+f"(alpha)=0` and `f^(prime)(alpha)!=0`

For all twice differentiable functions f : R to R , with f(0) = f(1) = f'(0) = 0

Let f:(0, pi)->R be a twice differentiable function such that (lim)_(t->x)(f(x)sint-f(x)sinx)/(t-x)=sin^2x for all x in (0, pi) . If f(pi/6)=-pi/(12) , then which of the following statement(s) is (are) TRUE? f(pi/4)=pi/(4sqrt(2)) (b) f(x)<(x^4)/6-x^2 for all x in (0, pi) (c) There exists alpha in (0, pi) such that f^(prime)(alpha)=0 (d) f"(pi/2)+f(pi/2)=0

If f(0)=f(1)=f(2)=0 and function f (x) is twice differentiable in (0, 2) and continuous in [0, 2]. Then, which of the following is(are) true ?

Let f:R rarr R be a twice differential function such that f((pi)/(4))=0,f((5 pi)/(4))=0 and f(3)=4 then show that there exist a c in(0,2 pi) such that f'(c)+sin c-cos c<0

If f:R rarr R is a differentiable function such that f(x)>2f(x) for all x in R and f(0)=1, then

Let f:R rarr R be a twice differentiable function such that f(x+pi)=f(x) and f'(x)+f(x)>=0 for all x in R. show that f(x)>=0 for all x in R .

If f:R to R is a twice differentiable function such that f''(x) gt 0" for all "x in R, and f(1/2)=1/2, f(1)=1 then :

if f:R rarr R is a differentiable function such that f'(x)>2f(x) for all x varepsilon R, and f(0)=1, then

Let f be a twice differentiable function on [0,2] such that f(0)=0,f(1)=2,f(2)=4, then prove that f^(prime)(alpha)=2\ for\ som e\ alpha\ in (0,1) f^(prime)(beta)=2\ for\ som e\ beta\ in (1,2) f' '(gamma)=0\ for\ som e\ gamma\ in (0,2)