0.6158 Consider the function f defined on [0, 1] such thatf (0) = f(1) = 1,f(1/5) = f(3/5) 2, and f(2/5) = f(4/5) = c. Suppose that the approximation of I = , f(x)dx by composite Trapezoidal rule with...

Extracted text: 0.6158 Consider the function f defined on [0, 1] such thatf (0) = f(1) = 1,f(1/5) = f(3/5) 2, and f(2/5) = f(4/5) = c. Suppose that the approximation of I = , f(x)dx by composite Trapezoidal rule with 5 subintervals is 1.8, then the value of c is %3D O 2 O 4 0.5 -0.5