Math Is Fun Forum

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#1 Help Me ! » Find the area » 2006-11-01 07:34:37

Radhika
Replies: 1

1)Sketch the graph of { (x , y) / | x+y|  + | x – y |  = 4 } and find its area.

#2 Help Me ! » I need help » 2006-11-01 04:24:45

Radhika
Replies: 3

5) If n  ≥ 4, show that 1! + 2! + 3! +.....+n!  Cannot  be a perfect square.

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