Integrate and find area under curve

I am trying to recreate an example given to us in class, my professor told us to integrate the function graphically then find the area under the curve. The function is 1/[C^1+1/0.95 * 50*exp(-.0.2*C)], our C values are 0.5, 1, 5, 10, 20, 30, 40, 50. He gave us our 1/F(c ) values of 4.191, 1.020, 0.041, 0.011, 0.0032, 0.0017, 0.0011, and 0.0009.

This is how I was attempting it in matlab:

x=[0.5 1 5 10 20 30 40 50];

y=1./((x.^(1+1/0.95)).*50.*(exp(-0.02.*x)))

plot(x,y)

Int= trapz(x,y)

The answer I got was:

y =

0.0838 0.0204 0.0008 0.0002 0.0001 0.0000 0.0000 0.0000

Int =

0.0734

I don't know if I am doing it wrong.

[Sriram Tadavarty]

One mistake is you used -0.02 instead of -0.2 in the exponential

[Reddington Tara]

Sriram,

My professor's example has -0.02 not -0.2.

[Devineni Aslesha]

The problem is with the way the function 'y' is defined in MATLAB as 1/y gives different results comapared to 1/F(c). Please check if the function is defined correctly.