Đáp án:
$C$
Giải thích các bước giải:
$y = \dfrac{\sqrt{x-3}}{x+2}$
Xét $x +2 =0$
$\to x =-2$
Xét tử : $\sqrt{x - 3} =0$ ( ĐKXĐ : $x \ge 3$)
$\to x = 3$
$\to x =-2$ không $\text{TM ĐKXĐ}$
Vậy chọn $C. y = \dfrac{\sqrt{x-3}}{x+2}$
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giúp mình vs ạ, mình cảm ơn nhìu
Mong Mn giúp :(( .l Complete the passage with the words/ phrases from the box. looked. team-building. zoo. lunch interest. looking forward to. craft. museum Last week we had a memorable trip to a new (1)______on the outskirts of the city. We were all (2)______the trip. There are lots of wild animals, and they are looked after carefully. Each species is kept in one big compound and the animals look healthy. After we (3)______round the animal zone, we gathered on a big lawn at the back of the zoo. There we played some (4)______ games and sang songs. Then we had a delicious (5)______prepared by Nga and Phuong. In the afternoon, we walked to a (6)______nearby. There is a big collection of handicrafts made by different (7) ______villages. I’m sure that the zoo will be our new place of (8)______. II. Rewrite each sentence so that it contains the phrasal verb in brackets. You may have to change the form of the verb 1. I don’t remember exactly when my parents started this workshop. (set up) ___________________________________________________ 2. We have to try harder so that our handicrafts can stay equal with theirs. (keep up with) __________________________________________________ 3. What time will you begin your journey to Da Lat? (set off ) _______________________________________________? 4. We arranged to meet in front of the lantern shop at 8 o’clock, but she never arrived. (turn up) ___________________________________________________ 5. The artisans in my village can earn enough money from basket weaving to live. (live on) __________________________________________________ 6. I’m thinking with pleasure about the weekend! (look forward to) _________________________________________________
Nguyên tử x có số nơtron nhiều hơn số proton là 7 hạt trong x tỉ lệ hạt mang điện gói hạt không mang điện là 29/18 tìm số nơtron proton và electron
Giúp em giải bài toán lớp 6được ko ạ em ko làm dc
5. Viết kết quả dưới dạng luỹ thừa (7 mũ 24 + 7 mũ 23) : 7 mũ 22
trên thiên thông văn dưới tường...............
Calli: Hơ hơ NL: khảo sát văn: 4,75 có cao quá ko mn ;-;
vẽ mầm ko hiểu sao a cường là admin hay sao mà nhiều điểm vậy ?
làm hôn em bài nha cảm ơn Mn nhiều
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