`B=\sqrt{33-12\sqrt{6}}+\sqrt{15-6\sqrt{6}}`
`B=\sqrt{24-2.(2\sqrt{6}).3+9}+\sqrt{6-2.3.\sqrt{6}+9}`
`B=\sqrt{(2\sqrt{6}-3)^2}+\sqrt{(\sqrt{6}-3)^2}`
`B=|2\sqrt{6}-3|+|\sqrt{6}-3|`
`B=2\sqrt{6}-3+3-\sqrt{6}`
`B=\sqrt{6}`
`B=sqrt(33-12sqrt6)+sqrt(15-6sqrt6)`
`=sqrt(24-2.2sqrt6.3+9)+sqrt(6-2.sqrt6.3+9)`
`=sqrt((2sqrt6-3)^2)+sqrt((sqrt6-3)^2)`
`=|2sqrt6-3|+|sqrt6-3|`
`=2sqrt6-3+3-sqrt6`
`=sqrt6`
Vậy `B=sqrt6`
Nếu có n đường thẳng phân biệt cắt nhau tại 1 điểm O thì có bao nhiêu góc bẹt?
Giups mk nhé, mk cần gấp cho tỉ lệ thức a/b=c/d,chứng minh rằng
I. Give the correct form of verb or write the sentence with “Wish…” 1. I wish I (can) speak English perfectly. I wish……….....…………..…… 2. I wish I (can) do this exercise. I wish……….....…………..………… 3. I wish I (know) how to swim. I wish……….....………….…..... 4. I wish the weather (be) better today. I wish……….....………….. 5. I wish you (like) my painting. I wish……….....…………..… 6. I wish I (not have to) work on Saturday. I wish……….....………… 7. I wish you (not come) here late. I wish……….....…………..……… 8. I wish I (will be) there soon. I wish……….....…………..…… 9. If only he (not leave) ………………….here. 10. She wishes she (finish) …………..her homework. 11. I wish I (be )…………………a doctor when I grow up 12. They wish it (not rain)…………………..tomorrow 13. If only we (not have ) ….……………. a test next Tuesday. 14. I wish it (be) fine…………………..on the party next week. 15. I wish tomorrow (be)……………………a beautiful day.
Vẽ anime/chibi cute *tradi càng tốt, đẹp
Chỉ cần làm mấy câu đánh dấu thôi ạ
Cách nhẩm nghiệm trên máy tính ??? giúp mình với ạ
Giúp mình với hết nhé cảm ơn bạn
Rewrite 1. We got planning permission and then we started building (soon) -> We started building as ..................................................... planning permission 2. The growth of these plants was very slow in my back garden ( grow ) -> These plants ..................................................... in my back garden 3. I think what she said at the press conference was true (truth) -> I think ............................................................ at the press conference 4. She talks nonsense all the time and I can't stand it (fed) -> I'm ............................................................. nonsense all the time 5. What caused the machine to stop working this morning ? (break) -> Why ....................................................... this morning ?
Cho góc xOy. Vẽ góc yOz kề bù với góc xOy. Vẽ góc xOt kề bù với góc xOy. Vẽ On là phân giác góc yOz . Vẽ Om là phân giác góc tOx . Khi đó góc zOn và góc xOm có phải là hai góc đối đỉnh hay không ?
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbber
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