Hi, I'm having trouble trying to find the percentage errors of P3(x) and P4(x).

Here's the question;

When x=0.7891.

f(x)=x/(sin(x)+2)

f(x)=0.2912

P3(x)=1/2*x-1/4*x^2

P3(x) =0.2389

P4(x)=1/2*x-1/4*x^2+1/8*x^3

P4(x) =0.3003

Find the percentage errors in using P3(x), and P4(x) to approximate f(x).

Thanks, DLL.