1.23452+0.76552+2.469×0.7655=______.
题型:填空题难度:一般来源:不详
1.23452+0.76552+2.469×0.7655=______. |
答案
令x=1.2345,y=0.7655, 则2xy=2.469×0.7655, 1.23452+0.76552+2.469×0.7655, =(x+y)2, =(1.2345+0.7655)2, =22, =4. 故答案为:4 |
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