Love the whiteboard in the back. This was a tough proof for the pre-calc h group. Sticking points: understanding the summation form with the three variables, i,n, and k, and manipulating the algebra to get what was necessary.
Love the whiteboard in the back. This was a tough proof for the pre-calc h group. Sticking points: understanding the summation form with the three variables, i,n, and k, and manipulating the algebra to get what was necessary.