2道因式分解1:900^2-1800*892+892^22:(1-1/2^2)*(1-1/3^2)……(1-1/2005^2)(1-1/2006^2)要因式分解的...还有过程
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![2道因式分解1:900^2-1800*892+892^22:(1-1/2^2)*(1-1/3^2)……(1-1/2005^2)(1-1/2006^2)要因式分解的...还有过程](/uploads/image/z/1961283-3-3.jpg?t=2%E9%81%93%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A31%EF%BC%9A900%5E2-1800%2A892%2B892%5E22%EF%BC%9A%EF%BC%881-1%2F2%5E2%EF%BC%89%2A%EF%BC%881-1%2F3%5E2%EF%BC%89%E2%80%A6%E2%80%A6%EF%BC%881-1%2F2005%5E2%EF%BC%89%281-1%2F2006%5E2%29%E8%A6%81%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%E7%9A%84...%E8%BF%98%E6%9C%89%E8%BF%87%E7%A8%8B)
2道因式分解1:900^2-1800*892+892^22:(1-1/2^2)*(1-1/3^2)……(1-1/2005^2)(1-1/2006^2)要因式分解的...还有过程
2道因式分解
1:900^2-1800*892+892^2
2:(1-1/2^2)*(1-1/3^2)……(1-1/2005^2)(1-1/2006^2)
要因式分解的...还有过程
2道因式分解1:900^2-1800*892+892^22:(1-1/2^2)*(1-1/3^2)……(1-1/2005^2)(1-1/2006^2)要因式分解的...还有过程
1:900^2-1800*892+892^2
=900^2-2*900*892+892^2
=(900-892)^2
=8^2
=64;
2:(1-1/2^2)*(1-1/3^2)……(1-1/2005^2)(1-1/2006^2)
=(1-1/2)(1+1/2)(1-1/3)(1+1/3).(1-1/2006)(1+1/2006)
=(1/2)(3/2)(2/3)(4/3).(2005/2006)(2007/2006)
=(1/2)(2007/2006)
=2007/4012.