简便运算0.37*0.37+2*0.63*0.37+0.63*0.63
问题描述：
简便运算0.37*0.37+2*0.63*0.37+0.63*0.63
答
＝﹙0.37＋0.63﹚²＝1
答
=(0.37+0.63)²
=1
答
0.37*0.37+2*0.63*0.37+0.63*0.63
=(0.37*0.37+0.63*0.37)+(0.63*0.37+0.63*0.63)
=0.37*(0.37+0.63)+0.63*(0.37+0.63)
=0.37*1+0.63*1
=1
答
0.37*0.37+2*0.63*0.37+0.63*0.63=0.37*0.37+0.63*0.37+0.63*0.37+0.63*0.63
=0.37*(0.37+0.63)+0.63*(0.37+0.63)=0.37+0.63=1