A-Level
EDEXCEL
Mathematics & Further Mathematics
January 2021
QP-202101-Further Mathematics-UFP2 · Question 2
Question (excerpt):
4 2. (a) Show that, for r > 0 r r r r r r r r r r + + − + + + = + + + 2 1 3 1 2 4 1 2 ( ) ( )( ) ( )( ) (2) (b) Hence show that r r r r n an b c n n r n + + + = + + + =∑ 4 1 2 1 2 1 ( )( ) ( ) ( )( ) …
4 2. (a) Show that, for r > 0 r r r r r r r r r r + + − + + + = + + + 2 1 3 1 2 4 1 2 ( ) ( )( ) ( )( ) (2) (b) Hence show that r r r r n an b c n n r n + + + = + + + =∑ 4 1 2 1 2 1 ( )( ) ( ) ( )( ) …
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