please help me solve this in R language

You are given the following discrete data that represent the following function: f(x)=cos0.5xe0.1x - Write an R function that implement the Interpolation formula shown in the class. Call this function MyIntCal(). - What is degree of the interpolating function? - You should have seven Lagrange polynomials, L1, L2, ... L7. Create a 4x2 figure and plot each of these polynomials in one subfigure. Add the final interpolating function in the last subfigure. Save this figure as MyIntFig.pdf - Use the built in function poly.calc() to find the interpolating function and call it pf_x. - Find the value of f(15) using MyIntCal() and pf_x. - Find the value of f(24) using MyIntCal() and pf_x