Ive never seen this before can anyone explain what to do?

1. Given Pascal's Triangle 5 10 10 5 . 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)2. Use the binomial theorem to expand -2x3 . Write each term in simplest form. (2 marks) 3. One term of an expansion for wt ) | is 17920xy* . Use the general term formula, thei = ,, Ck (x)" (y)" , to algebraically determine the value of w. (2 marks)4. Given the binomial (x - 2x? )" a. Determine the middle term for this expansion. State the term in simplest form. (1 mark) b. If the expansion is writing in ascending order of powers, determine the fifth term. State the term in simplest form. (1 mark)1 H- 5. Given the binomial [I i} I. a. If the expansion is written in descending order of powers, determine the second last term. State the term in simplest form. {1 mark} h. Determine the constant term for this expansion. {1 mark} c. Consider whether the expansion for this binomial will contain a simplified term whose variable is 1"\". Justify your answer. {1 mark}