$y=f(x)=\dfrac{x^2+3x+3}{x+1}$
$f(0)=3$
Xét $\lim\limits_{x\to 0}\dfrac{ \dfrac{x^2+3x+3}{x+1}-3 }{x-0}$
$=\lim\limits_{x\to 0}\dfrac{x^2+3x+3-3(x+1)}{x(x+1)}$
$=\lim\limits_{x\to 0}\dfrac{x^2}{x(x+1)}$
$=\lim\limits_{x\to 0}\dfrac{x}{x+1}$
$=0$
$\to f'(0)=0$
Ta có
$y' = \dfrac{(2x+3)(x+1) - (x^2 + 3x + 3)}{(x+1)^2} = \dfrac{x^2 +2x}{(x+1)^2}$
Với $x_0 = 0$, thay vào ta có
$y'(0) = \dfrac{0 + 0}{1^2} = 0$
Viết chương trình tính S=1+2+3+4.....+n Làm trên pascal nha mấy bạn
Hai thỏi kim loại có khối lượng bằng nhau,một thổi đồng,một thỏi sắt.Hỏi thỏi nào có thể tích lớn hơn,biết Trọng lượng riêng của sắt lớn hơn đồng
vẽ một người đang chụp ảnh và một người cầm máy ảnh chụp
Is Prince William an embryonic bard? A research team in Germany claim they have found evidence that he is descended from Shakespeare and many thus have inherited literary genius. Frustrated by a lack of first-hand evidence, researchers trying to ......(1) together details of the Bard's life have long turned to his sonnets as the only words of his that might be autobiographical. For centuries, academics have been trying to solve the......(2) riddle of the "Dark Lady", the mystery person to whom Shakespeare addressed his sonnets. Those in the most recent detective.....(3) have come up with some evidence that the Bard's bloodline is linked to the youngest generation of the royal family. This bold claim is.....(4) by clues hidden in paintings of a previously unidentified nobble woman to be named by a German academic team as Shakespeare's dark-haired lover. They were assisted by forensic experts from the German police. But who was the Dark lady? So many.....(5) theories have been advanced that some scholars have abandoned the research. In fact, the answer may be.......(6) us in the face. According to one eminent academic, a portrait of the mystery women is on show in Hampton Court Palace in London,......(7) it is known as The Persian Lady. She argues that the pregnant woman depicted there is Elizabeth Vernon, a lady-in-waiting to Qeen Elizabeth who, after an illicit affair with Shakespeare, went on to marry his patron......(8) this woman, Elizabeth, third Countess of Southampton bore Shakespeare a daughter, Penelope, who grew up to tie the......(9) with William. Second Baron Spencer, and their descendant was the father of Diana, Princess of Wales and grandfather of Prince William. So far, Prince William's talents have shown themselves in the sports field. But who knows? His uncle, Earl Spencer, did after all receive world-wide acclaim for his......(10) at the funeral of his sister. 1. A.part C. piece B. mold D. weld 2. A. enticing C. tantalizing B. appalling D. petrifying 3. A. series C. wave B. hunt D. thread 4. A. held up. C. backed up B. rallied round D. stuck up for 5. A. rival C. holistic B. no-nonsense D. orthodox 6. A. staring C. glaring B. looking D.ogling 7.A. lest. C. for B. where D. while 8. A. Supposedly C. Knowingly B. Strangely D. Seemingly 9. A. loop C. hitch B. bond D. knot 10. A. monologue. C. oratory B. elocution D. address Giúp mình nhanh vote 5 sao nha
. Tìm hai số nguyên liên tiếp, biết rằng 2 lần số nhỏ cộng 3 lần số lớn bằng –87
write conditional sentences type 2 using the cues given :1,what/happen/if/water pollution/stop?
c) : ( m : 1 - m x 1 ) : ( m x 1991 + m + 1 ) với m là số tự nhiên
vẽ cho mình hai chị em đang ngủ đừng tô màu
Mọi ngưòi giúp em bài này với ạ:(( e cần gấp
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