Tìm lỗi sai rồi sửa

1) This has to be the most (A) supreme (B) example of ignorance (C) I have ever (D) encountered.

2) Helen is extremely (A) perfect (B) when it comes (C) to grammar (D), as I am, said Dorothy.

3) Even (A) though the two properties are priced like (B), the condo buyer will need more (C) income (D) to qualify for a loan.

Hãy chọn từ hoặc cụm từ được gạch dưới (A,B,C,D) cần sửa lại cho đúng

1) Marias last chess move (A), when compared (B) to the grandmasters, is equally as (C) mistaken (D).

2) Aneroid (A) baromaters are (B) smaller than (C) mercury barometers and are more easy (D) to carry.

3) Because the city has more (A) policemen (B) on the beat (C), the people feel securer (D).

4) Like (A) I walked up the driveway (B), a huge (C) dog suddenly (D) leaped out at me.

5) Parents in Europe (A) are stricter than (B) parents in Australia (C). Parents in Asia are the most strictest (D) of all.

6) This has to be the most (A) supreme (B) example of ignorance (C) I have ever (D) encountered.

7) Helen is extremely (A) perfect (B) when it comes (C) to grammar (D), as I am, said Dorothy.

8) Even (A) though the two properties are priced like (B), the condo buyer will need more (C) income (D) to qualify for a loan.

a, (1- cos a ).(1+ cos a )

b, 1+ sin ²a + cos ² a

c, sina - sin a. cos ² a

d, cos ²a + tan ² a. cos ² a

( giải chi tiết từng bước)

cho cot α= 12/13 tính sin a, cos a,tan a

Viết 1 đoạn văn theo chủ đề tự chọn trong đó sử dụng ít nhất 3 câu nghi vấn với các chức năng khác nhau

ko chép mạng