Here's the question you clicked on:
raytiller1
Explain when to use each formula: , r 1 (Honors Only) 1 1 1 2 ( 1) 2 2 ( 1) 1 1 1 1 1 1 1 1 1 when r a S r a a r S r a a r S a a r a n d n S a a n S a a n d n n n n n n n n n n 5. Honors only: Explain the parts of summation notation. Also explain how to expand, and to how to simplify an expression in summation notation.