I want the solution of this problem.

1. In the second step of the N-R-squared test, we proceed with the following steps 1. Run the restricted model and obtain the residuals & = Y, - X1:B1- 2. Run the OLS regression e; on X1, Xy; and get the R-squared. Show that if Xi; contains a constant, the uncentered R is the same as the centered R in the second step regression