1. Given Pascal's Triangle 4 1 3 1 2 6 1 3 1 5 10 10 4 1 5 1 1 a. Explain how the n and r values for C, relate to the number 6 shown above in Pascal's triangle. Justify your explanation by showing all calculations. (2 marks) b. The numbers 1, 16, 120, 560, 1820 are the first values in a row of Pascal's triangle. Determine the first four values of the row above it. (Recall that for the directing word "determine" numerical and/or algebra steps should be shown.) (1 mark)