问题
填空题
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
1.23452+0.76552+2.469×0.7655=______.
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