> 数学 >
a2+b2-1/2a2-1/2(a+b)*b怎么化简
人气:386 ℃ 时间:2019-11-15 06:52:35
解答
a2+b2-1/2a2-1/2(a+b)*b
=a^2+b^2-1/2a^2-1/2ab-1/2b^2
=1/2a^2+1/2b^2-1/2ab
推荐
猜你喜欢
© 2025 79432.Com All Rights Reserved.
电脑版|手机版