第十六章二次根式測(cè)試題最新整理

1、O :OOOOO第十六章二次根式測(cè)試題一、選擇題（每題3分共30分）1.下列各式成立的是（）A. J（-2）2 =-2 B. 7T5）T = -5 C. y = x D&忌=62如果a是任意數(shù)，下列各式中一定有意義的是（）A.罷 B.C. yla2+ D. 43下列根式中，最簡(jiǎn)二次根式是（）A. V25 B. la2+h2D. V(X54計(jì)算(2- 2)( V12 + V20)的結(jié)果是()A. 32 B. 16C.8D.45.等式 J(d +1)(1-“) = Jd+1 yj- a 成立的條件是()A. a- B. a 1C-IvgSI6.若x-l B. xW3 C.-lWxW3 D.-l/5

2、的絕對(duì)值是,血的倒數(shù)是 (填最簡(jiǎn)二次根式)13. 當(dāng)x時(shí)，血?軻有意義，若三有意義，則x.X14. 化簡(jiǎn) j225xO.O4 =, V1 172 - 1082 =15. y2xy y/Sy =, x 27 =.16比較大?。?3雖 (填 “”、“、“V”)17.若yj(a - 2)2 = 2-a ,則a的取值范圍是三、解答題(42分)1&計(jì)算(1) 3上-晶十忑-叼(2) (4、/S 6a5 -22(3) (2、你+5運(yùn)(2亦一切一(、伍尸(4)7a顧一心2.閱讀下面問(wèn)題：石=占+ =宀；1_血a/3 + y2(y3 + y2)(y3 y/2)V4 + V3V4-V3(折 +館)(、/?)試求

3、:(1)(2)yfn +1 + yfn（n為正整數(shù)）的值.19如圖，用一個(gè)面積為x的正方形和四個(gè)相同的長(zhǎng)方形拼成一個(gè)面積為8x 的正方形圖案，求長(zhǎng)方形的周長(zhǎng)。K-議熬知g 山稔盼大徑TW 來(lái)南儻曾說(shuō)總，“燼含尊習(xí)6人4U壞哮尬6人”。441-佔(zhàn)較也人儀中，尊 習(xí)抑鬼桓6沁理仆含強(qiáng)文靈缺就我見(jiàn)加習(xí)Q噸要枚“人用仏，工密何好，必務(wù)工 J礪習(xí)才彼畑JJ盹（J乙，爲(wèi)&各丈從乂人X2號(hào)右期6勺學(xué)習(xí)，歹猶茲祈他袒關(guān)知漢，Mi.上企丈發(fā)層 步代，才鳩許也劄扌彳總用專妬6勺熔衣，4文他乜電巾農(nóng)工仆密老乂人久編輯，文桔沖可脳含玄隔淡，MHil 陸您卅止，不卅感職！At the end, Xiao Bian gi

4、ves you a passage. Minand once saidpeople who learn to learn are very happy people. In every wonderful life, learning is an eternal theme. As a professional clerical and teaching position, I understand the importance of continuous learning, vvlife is diligent, nothing can be gained9, only continuous

5、 learning can achieve better self. Only by constantly learning and mastering the latest relevant knowledge, can employees from all walks of life keep up with the pace of enterprise development and innovate to meet the needs off the market. This document is also edited by my studio professionals, there