who fast i

1. Kangaroo

2. Shark

1 Kangaroo

2 Shark

Each time, a person takes 1, 2, 3, or 4 chips. The strategy for a player to win the game is taking the number of chips so that the number of chips left is the form of 5k + 1 .

If It is my turn, and there are 2014 chips in the pile, I shoud take 3 chips and the left is 2011 (=5.k +1). And if the opponent takes x chips (x = 1, 2, 3, 4) , i win take 5 - x chips to guarantee the left is always in the form 5k + 1. And finally, the opponent will take the last chip.

there are four ducks

me too

Prove that: a2+b22≥(a+b2)2

me too

Sở thú bị cháy con người chạy ra đầu tiên là con người
 nhưng bạn chỉ được điền bằng tiếng anh
 

10000006

13054

157987

Nick will need : 134134 +  334334 = 112112 = 5,5