Tính:

sinα . cos α biết tanα +cotα = 3

Làm thế nào để tạo ra con gái, làm thế nào để tạo ra con trai?

Giúp e với, tks trước ạ!

It is very difficult to decide on the correct (0) punishment m caSes like these. This was why it took the judge so long to reach a (1) in Mrs Lovell's case. Her lawyer said in her (2)_that she was lonely and confused and that this was why she had ignored the (3)_of her neighbours for so long. He also argued that this was not a case of deliberate (4)_. In other words, Mrs Lovell had no (5)_of causing suffering. He also argued that a case like this called for (6)_• The judge finally found her (7)_, but gave her (8)_to keep one dog for a period of a year, subject to good (9)_. In other words, if she repeats her (10)_, the dog will be taken away from her.

0 PUNISH 1 DECIDE 2 DEFEND 3 COMPLAIN 4 CRUEL 5 INTEND 6 UNDERSTAND 7 GUILT 8 PERMIT 9 BEHAVE 10 OFFEND

Hỗn hợp (A) có khối lượng 9,1 gam gồm bột của các kim loại đồng và nhôm. Khi cho hỗn hợp (A) tác dụng

với dung dịch axitsunfuric ( loãng,dư ) thì thu được một chất khí không màu và chất rắn (X) màu đỏ gạch.

Đem oxi hóa chất rắn (X) thu được 8 gam chất rắn (Y) màu đen dạng bột.

a ) Xác định tên chất rắn (X) và (Y).

b ) Viết các phương trình phản ứng xảy ra ( ghi rõ các điều kiện phản ứng nếu có ).

c ) Tính thành phần % theo khối lượng của mỗi kim loại có trong hỗn hợp (A).

Mai mình kt r, giúp mình với, tks trước ạ.

A many of many parts

Life on a remote Scottish island is wonderfully peaceful. But(0) one local, Hamish McAlpine, life is far from relaxing. This is because Hamish has fourteen jobs.(13) he meets me off the ferry, harbour master Hamish is one and (14) person in sight. Luckily, he is also the island's taxi driver, so he takes me to the hotel,(15) he owns. He can even (16) found serving behind the counter at the local shop.

It all started not(17) after Hamish married his wife Donna in 1964.The couple were asked(18) they would like to run the post office. Then Hamish found himself agreeing to become fire chief, policemean and coastguard. Now, having given 35 years of devoted service, Hamish (19) about to retire. But who will(20) over his jobs? Can one person do it all or will the jobs to be split up?

Apart (21) their week-long honeymoon on the mainland, the couple have had hardly (22) holidays. 'Donna and I have worked together every day for the last 35 years. But who knowns, one we have lots of time on our hands we (23) find we can't stand the sight of each (24) ,' says Hamish, his eyes twinkling mischievously.