a: \(2\cdot\sin30^0-2\cdot cos60^0+\tan45^0\)

\(=2\cdot\frac12-2\cdot\frac12+1\)

=0-0+1

=1

b: \(\cot44^0\cdot\cot45^0\cdot\cot46^0\)

\(=\tan46^0\cdot\cot46^0\cdot1\)

\(=1\cdot1=1\)

bạn vui lòng để đúng nội dung câu hỏi với lớp nhé

29 con

14 + 15 =29 ( con )

thứ tự từ bé đến lớn là : 1/3 ; 2/3 ; 6/5

1 , 2 , 3, 5 , 6 .

0

10

nha bn k mk nha bn

thanks nhju

\(99+1-100=0\)

\(66+44-100=10\)

k mk mk k lại nhé

Số trứng nhà Mai biếu bà là :

  2484 x 1/4 = 621 (quả trứng)

Số trứng nhà Mai còn là :

  2484 - 621 = 863 (quả trứng)

  Đáp án : 863 quả trứng.

1863 quả trứng

1)mot nam khong tam

2)sau sau ban ban mot nam khong tam

3)ba ret khong ba

4)sau mot nam khong tam

5)sau sau ban ban lam

1) Một năm không tắm.

2) Xấu xấu bẩn bẩn ba năm không tắm.

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bị sao d