4. This is a row from Pascal's Triangle. Determine the entries of the next row. Show your working out. 1 6 15 20 15 6 1 5. State the simplified general term of the following sequences, then determine the indicated term: Show your working out. a) 9, 15, 21, ... tn = ____ , t7 = ____
b) 8192, -4096, 2048,.. tn = ____ , t11 = ____
6. Determine S10, for these series using the appropriate formula. Show your working out. a) 800 + 200 + 50 + ...