>
数学
>
式子根号(3+根号5)+根号(3-根号5)的化简结果为?
人气:146 ℃ 时间:2019-12-18 08:50:08
解答
令原式=a
则显然a>=0
a²=3+√5+2√(3+√5)(3-√5)+3-√5
=6+2√(9-5)
=6+2×2
=10
所以原式=√10
推荐
化简下列各组式子 (1)2根号5分之2 根号2-5分之2 (2)3根号10分之3 根号3-十分之3 (3)4根号17分之4
化简根号下带根号的式子 根号下(24-12倍根号3)
化简:根号3×(1-根号15)-3倍根号1/5
化简:根号5分之(根号15*根号3)
(根号5+3根号3+2根号2)/((根号5+根号3)x(根号3+根号2))化简
正整数内,有三个素数之和是80,这三种素数有几种组合?
1.Your bones are constantly receiving and losing calcium,the mineral that-----them strong and break resistant.
怎么判断化学性质相似
猜你喜欢
“云就像是天气的招牌”这句话运用了什么说明方法,说明了什么?
阅读理解《离太阳最近的树》
Lily,is Helen ______ you want to introduce me to?A.that B.who C.whom D.the girl
I hope I can visit your room some day.(同义句)
王爷爷为了扩大养鸡场地,把原来长20米,宽14.5米的长方形围栏拆开,用这些围栏一边靠墙重新围一个(是整数
如何回答hello,how are you doing today
英语翻译 i don't have money ___ ___ ___ the expensive computer.
Today,we have a biology lesson.In the class,I know we should take good care of the earth.
© 2025 79432.Com All Rights Reserved.
电脑版
|
手机版