" 25.The greatest value of "f(x)=cos(xe^([x])+7x^(2)-3x),x in[-1,oo)," is "

The greatest value of f(x)=cos(x e^([x])+7x^(2)-3x), x in [-1,oo) is :

The greatest value of f(x)=cos(xe^([x])+7x^(2)3x),xe in[-1,00) is

The greatest value of : f(x) =cos[x e^([x])+7x^(2)-3x], x in [-1, oo) is :

The greatest value of f(x)=cos(xe^((x])+7x^(2)-3x),x in[-1,oo] is (where [.] represents the greatest tinteger function).-1 (b) 1 (c) 0 (d) none of these

The greatest value of f(x)=cos(x e^([x])+7x^2-3x),x in [-1,oo], is (where [.] represents the greatest integer function). -1 (b) 1 (c) 0 (d) none of these

The greatest value of f(x)=cos(x e^([x])+7x^2-3x),x in [-1,oo], is (where [.] represents the greatest integer function). -1 (b) 1 (c) 0 (d) none of these

The greatest value of f(x)=cos(x e^([x])+7x^2-3x),x in [-1,oo], is (where [.] represents the greatest integer function). -1 (b) 1 (c) 0 (d) none of these

The greatest value of the funxtion f(x)=xe^(-x) " in " [0,oo] is

The greatest value of the funxtion f(x)=xe^(-x) " in " [0,oo] is