求解第19題

The company's best-selling software is an application pronunciation. (A)X (B), which (C)which (D)what can correct users' English the local Learning to speak the language of the country you're about to visit is worth doing, 70 people the impression that you respect their culture. (A)giving (B)gave (C)given (D)gives L

問第11題

Bolz (C)to seeing (D)of seeing My mom was very pleased to see the dishes by my father. (A)do (B)to do (C)done (D)doing Sam never goes swimming without warming up his body first. (A)without (B)to (C) of (D)as 双否定

求解15題

our arrangements. (A)on (B) for (C)about (D)to person doesn't make any difference repeated failure, Joyce never gave up and kept going on. (A)Despite (B)Without (C)Though (D)By The diner finished his lunch, i 1 ! a big tip on his table in appreciation of the good service 16 provided by the waitress. (A) left (B) to leave (C) and leave (D) leaving

求解

ming up his body first. (A)without 双否定 (B)to (C)of (D)as The naughty kids disturbed a nest of bees do it again. (A) of (B) by (C)for (D)with no reason and got stung. They promised to never You can come join us on our trip to the mountains. One person doesn't make any difference our arrangements. (A)on (B)for (C)about (D)to

（圖一是題目圖二是解答） 我有很多疑問 分別在圈起來的三個區塊 1. 為什麼是1 2.這個圈下面那行說取x=0 我了解他是從圈起來的地方來的 但我不懂為什麼 3.這個圖在尬嘛 以上 麻煩各位大佬了 謝謝

說例2 以e-8程序證明 lim 數學系 X x 1 2x+3 5

想請教這兩題： 我做第二題時(圖一)發現 無法直接將頂點作推移矩陣，得出的點並非新頂點， 只能用變數變換求新頂點 但第三題(圖二圖三) 詳解直接將焦點做鏡射矩陣了， 因此我想問的是， 有哪些特殊矩陣(即旋轉,鏡射,伸縮,推移) 是可以將特別意義的點(像頂點,反曲點,焦點)直... 繼續閱讀

No. #4x+3y=50 2.拋物線:(x-2)=4(y+3)上的點,經推移A=| [18] 變換後的圖形為拋物線 2 '的準線方程式為 ,試求的焦點坐標為 點是由上的4點推移而成,試求4點坐標為 。 ,的頂 Date 2-072 Hi 1717-7 xzX -- 1 y=2x+y.② y=y-2x (x-2)² = 4 (Y-2x+3) x²-4x+4 = 44 -8x+12 X+4X+4 = 41Y+12 (X+2)=4(y+3) →新貢奌(-2,3) 扌 肯変

這題怎麼算

18.正方形 ABCD 中內部一點 P,已知PA=1,PB=3,PD=5,請問: (1) PC = (® )。斤 (2) ∠APB = (⑩) 度。135 TO已知△ABC的三邊長AC=5、AB=6、BC=7, A into A cha Pil to to to D T B A F E DEE 1 = (20)。平方單位 D

兩個問題 1.我該怎麼知道lim tan^-1x=π/2 2.第二張圖是我寫的算式 好像誤打誤撞m寫對了 但我不確定我的步驟有沒有問題 想請教一下 謝謝各位大神

說例7 求f(x)=2x+tan-x 之漸近線? 漂亮題 [解]直接看出 f(x)為連續函數,即無垂直漸近線! y 由lim 2 = lim 2x+ tan-1 x x→00 x→00x =2 x ?就速清除二 lim(y-2x)=lim(2x+tan-lx-2x): x→00 x→00 πT = 2 15 πT 得 y=2x+ 為斜漸近線 2 由 lim 2 = lim y x→00xx→00 00 ←← 康會甜地 2x+tan-1x 2x- = lim xmil 811x x 元 2 ==2 lim(y-2x)=lim(2x+tan-x-2x) x→00 x→00 得 y=2x- - 為斜漸近線。 2 =-- 2

請問這題是怎麼算的

2-3.以O為極的極坐標平面上,兩點4[10.0]、B(13.A),a是銳角,且sme = :B是钝角, 12 且sinB= b *期: Suntin. = (1)48之長為「河 Sing (2) AOAB的面積為。 ((1)√205 (2) 63)

求解

√4-3. 14-3. 若90°<<180°,且sin8+cosA= 1 則cos=5 2