Is the result of 2010-2009 + 2008-2007 +... + 2-1 odd or even

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• 1. Is the result of the following formula odd or even? 1+2+3+4+… +2009+2010．
• 2. A simple algorithm of 2 * 3 / 1 + 3 * 4 / 1 +... + 2009 * 2010 / 1
• 3. A, B and C are three rational numbers which are not equal to zero. The product is negative and the sum is positive. Find the value of a | a | + B | B | + C | C | Sorry, it's a semicolon,
• 4. Bracket minus one third bracket square divided by bracket minus one third bracket cube multiplied by bracket minus one third bracket cube divided by 3 minus 2 times bracket minus 3 It's a process
• 5. The quadratic power of (a-b) multiplied by the nth power of (a-b) multiplied by the quintic power of (B-A)
• 6. A minus the - 1 power of a is equal to 3. To find the fourth power of a plus the negative fourth power of a, we can't find the power, so we have to use language
• 7. What's the meaning of brackets to the fourth power of negative 2 and to the fourth power of no negative 2?
• 8. What is the fourth power of 1 without brackets
• 9. Wang Liang and Li Jun are playing a game. In advance, they prepare a card with the following four numbers: bracket 1 / 3 to the 30th power, bracket 3 to the 30th power, bracket 1 / 2 to the 30th power They put the card into a sealed box. The rules of the game are: two people take turns to take the card, and calculate the product of the two numbers they get. It is stipulated that whoever gets the big result wins. Wang Liang draws two numbers: the 30th power of one third bracket and the 30th power of three. Li Jun draws two numbers: the 40th power of two and the 40th power of two, At this time, they all think they have won. Please be the referee. Who do you think they have won, and explain the reason
• 10. The nth power of x = 5, the nth power of y = 3, find the 3N power of X bracket of Y part
• 11. 1+2+3+…… +Is the sum of 2008 + 2009 + 2010 odd or even?
• 12. Is the sum of 1 + 2 + 3... + 2010 + 2011 + 2012 odd or even
• 13. 1+2+3+… +The result of 2010 + 2011 is odd______ ．
• 14. If the m power y of - 3 / 5 times x is the same as the 4N power of 2 times x times y, the value of 2009 power of M times 2010 power of n is obtained
• 15. Given 1 + X + X & # 178; = 0, find the 2009 power of X + 2008 power of X +. + X & # 178; + 1
• 16. N & # 178; + n & # 178; * (n + 1) &# 178; + (n + 1) &# 178; = the result of calculating 2008 & # 178; + 2008 & # 178; * 2009 & # 178; + 2009 & # 178; = the result of calculating 2008 & # 178; + 2008 & # 178; * 2009 & # 178; + 2009 & # 178
• 17. Given that m.n is the root of the equation x2 + 2007x-2009 = 0, then the value of (M2 + 2007m-2008) (N2 + 2007n-2010) is______ ．
• 18. 1 (- 5) to the fourth power 2 (- 5) to the fifth power 3 - (- 5) to the sixth power 4 - (- 5) to the seventh power What rules can you find by judging the symbols of the following results
• 19. A seventh power - 2A sixth power + 3A fifth power
• 20. -What is the result to the power of 5 / 3 and 10 / 6 of 2?