解决下列数学题啊,聪明得进

来源:百度知道 编辑:UC知道 时间:2024/06/05 15:32:30
1、 3(2²+1)(2^4+1)(2^8+1)(2^16+1)+1 =?

2、求证:4个连续整数的积与1之和,是完全平方数

3、已知:a^2b^2+a^2+b^2+1=4ab 求 2a^b

3(2²+1)(2^4+1)(2^8+1)(2^16+1)·(2^2-1)/(2^2-1)
= 3(2^4-1)(2^4+1)(2^8+1)(2^16+1)/(2^2-1)
= ...=2^32-1
故原式 = 2^32-1+1 = 2^32

2.1 + x(x+1)(x+2)(x+3) = 1 + (x^2 + 3x+1 +1)(x^2 + 3x+ 1 -1)
= (x^2 + 3x + 1)^2

3.原式移向得:(ab-1)^2 + (a-b)^2 = 0 ,故ab = 1,a-b = 0,故a=b=1或-1
2a^b = 2或-2

3(2²+1)(2^4+1)(2^8+1)(2^16+1)·(2^2-1)/(2^2-1)
= 3(2^4-1)(2^4+1)(2^8+1)(2^16+1)/(2^2-1)
= ...=2^32-1
故原式 = 2^32-1+1 = 2^32

2.1 + x(x+1)(x+2)(x+3) = 1 + (x^2 + 3x+1 +1)(x^2 + 3x+ 1 -1)
= (x^2 + 3x + 1)^2

3.原式移向得:(ab-1)^2 + (a-b)^2 = 0 ,故ab = 1,a-b = 0,故a=b=1或-1
2a^b = 2或-2

这种题目要自己做!!
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加油啊!!
(*^__^*)