[" 57.If "f(x)dx-(22')/(5)*t>0," then "f((4)/(25))=],[[" A) "(2)/(5)," B) "(5)/(2)," C) "-(2)/(5)," D) "1," E) "x]]

If f(x) is differentiable and int_(0)^(t^(2))xf(x)dx=(2)/(5)t^(5), then f((4)/(25)) equals (a)(2)/(5)(b)-(5)/(2)(c)1(d)(5)/(2)

If int_(0)^(x)f(t)dt=x^2+int_(x)^(1)\ t^2\ f(t)dt , then f((1)/(2)) is equal to (a) (24)/(25) (b) (4)/(25) (c) (4)/(5) (d) (2)/(5)

If int_(0)^(x)f(t)dt=x^(2)+int_(x)^(1)(:t^(2)backslash f(t)dt, then f((1)/(2)) is equal to (a) (24)/(25) (b) (4)/(25) (c) (4)/(5) (d) (2)/(5)

If f(x)=(25-x^(4))^(1 / 4) for 0ltxltsqrt(5 ), then f(f((1)/(2))) =

If f(x):(25-x^(4))^((1)/(4)) for 0

If f(x) is differentiable and int_0^(t^2)xf(x)dx=2/5t^5, then f(4/(25)) equals (a) 2/5 (b) -5/2 (c) 1 (d) 5/2

If f(x) is differentiable and int_0^(t^2) x f(x) dx=2/5t^5, then f(4/(25)) equals (a) 2/5 (b) -5/2 (c) 1 (d) 5/2