Hint for the Q.1 The solution for the Q.1 may take just a few lines. That means; (a) Even a single line solution is possible (a bit extreme though) .so.. (b) Think first, act later. A teaser; + 4! 6!...

Extracted text: Hint for the Q.1 The solution for the Q.1 may take just a few lines. That means; (a) Even a single line solution is possible (a bit extreme though) .so.. (b) Think first, act later. A teaser; + 4! 6! +... = 2 8! - - 2! 1/2 ..good luck Q1) (22 p) Looks like real questions... It's not.. Remember the lectures. Show that Σ (-1)"+1, = 2 (2n)! n=1 and 2n-1 (-1)"+1, = 0. (2п — 1)! n=1