" if "phi(x)=phi'(x)" and "phi'(1)=2

If phi(x)=int(phi(x))^(-2)dx and phi(1)=0 then phi(x) is

If phi(x) is a polynomial function and phi'(x)>phi(x)AA x>=1 and phi(1)=0, then phi(x)>=0AA x>=1 phi(x) =1phi(x)=0AA x>=1 (d) none of these

Given F(x)=f(x)phi(x) and f'(x)phi'(x)=c then prove that F''(x)/F(x)=(f'')/f+(phi'')/phi+2c

If phi(x) is a differentiable function AAx in Rand a inR^(+) such that phi(0)=phi(2a),phi(a)=phi(3a)and phi(0)nephi(a), then show that there is at least one root of equation phi'(x+a)=phi'(x)"in"(0,2a).

Solve (dy)/(dx)+y phi'(x)=phi(x).phi'(x), "where" " "phi(x) is a given function.

Solve (dy)/(dx)+y phi'(x)=phi(x).phi'(x), "where" " "phi(x) is a given function.

Solve (dy)/(dx)+y phi'(x)=phi(x).phi'(x), "where" " "phi(x) is a given function.

Solve (dy)/(dx)+y phi'(x)=phi(x).phi'(x), "where" " "phi(x) is a given function.

Solve (dy)/(dx)+y phi'(x)=phi(x).phi'(x), "where" " "phi(x) is a given function.