Finding the second derivative of the function y = ex cosx

y' = e^x cosx - e^x sinx
y'' = e^x cosx - e^x sinx - (e^x sinx + e^x cosx)
= -2e^x sinx

Combine the following sentences into compound sentences with object clauses
1 It's going to snow.She thought.2 Are you a tescher?Please tell me.3 Where are you going?Can you tell me?4 He has seen the film.He told me.
5 Who will help Mary with English?He asked me.

1 It's going to snow.She thought.
She thought it was going to snow.
2 Are you a tescher?Please tell me.
Please tell me if / whether you are a teacher.
3 Where are you going?Can you tell me?
Can you tell me where you are going?
4 He has seen the film.He told me.
He told me he had seen the film.
5 Who will help Mary with English?He asked me.
He asked me who would help Mary English.

Combine the following sentences into a master-slave compound with an object clause
When does the train arrive please tell me.
please tell me____ _ _ _ .
What does he do?do you know?
do you know __ _ ?
Do they want fried chicken he asked boys.
he asked boys _ fried chicken .
Was the watch made in shanghai?I don't know.
I don't know the watch __ _ in shanghai
He son will pass the exam .he said.
he said his son _ _ the exam .

Rice cooker, electric blanket, Hello!
When does the train arrive ?Please tell me.
Please tell me what time the train arrives.
What does he do?Do you know?
Do you know what he does?
Do they want fried chicken ?He asked boys.
He asked boys whether\if they wanted fried chicken .
Was the watch made in shanghai?I don't know.
I don't know whether\if the watch was made in shanghai.
He son will pass the exam .He said.
he said that his son would psss the exam .
It should be right. Our teacher just talked about the object clause
The rules are like this;
① Conjunctions
That is followed by a declarative sentence
(2) when is followed by a general question
(3) interrogative words followed by special interrogative sentences
② Word order
Subject + conjunction + subject + predicate + others
③ Tense
1. The main clause should use the general present tense and the subordinate clause should choose the proper tense
2. The main clause should use the general past tense and the subordinate clause should use one of the past tenses
3. When the clause is an objective truth, proverb or maxim, the clause always uses the simple present tense no matter what tense the subject is
Our English teacher asked us to recite all the questions, and said that we could carry all the questions when reciting them, so we all did. So, I suggest you recite them word by word, and the effect is very good
I've been fighting so hard. What's the point!

Combine the following sentences into compound sentences with object clauses
1.He said.He doesn't want to move to the city.
2.The girl asks. Is it necessary to learn computer?
3.Could you tell me? What are they talking about?
4.I want to know. When does Jim do his homework.
5.Do you think? They need to wear uniforms every day.
6.The teacher told us. Mother's Day is on the second Sunday of May.

1.He said.He doesn't want to move to the city.He said that he didn't want to move to the city.2.The girl asks.Is it necessary to learn computer?The girl asks that is it necessary to learn computer?3.C...

Combine the following sentences into compound sentences with object clauses
I believe .My uncle can speak English welll.
Did John go to the zoo yesterday?George asked.
When will the movie be on?Can you tell me?
The earth goes around the sun.The teacher told us.

I believe .My uncle can speak English welll.【I believe that my uncle can speak English well.】Did John go to the zoo yesterday?George asked.【George asked that whether John went to the zoo yesterday....

Change the following sentences into compound sentences with object clauses
How many birds are there in the tree Kate asked.

He asked me how many birds there were in the tree.

A compound sentence with an object clause
1、light travels faster than sound.my teacher told me
my teacher told me _ light faster than sound
2、there will be a meeting in five days.jack didn't know.
jack didn't know _ there a meeting in five days.
3、can they speak French?i want to kown
i want to kown _ _ _ _ French.
4、are the children playing games?Tell me.
Tell me _ the children _ _ games.
5、have you finished your homework yet? Mr.Zhao asked Ma Gang.
Ma.Zhao asked Ma Gang
Mr.Zhao asked Ma Gang _ _ _ _ homework yet.
6、how many people can you see in the picture?who knows?
who knows_ __ _ _ in the picture?
7、where did she park her car?do you know?
do you know her car?
8、what does he often talk about?the girl wondered.
the girl wondered often _ about.
9、who knocked at the door so loudly?i don't know.
i don't know _ at the door so loudly.
10、does he still live in that street?i don't know.
i don't know he still ___ in the street.
11、what's his name?i asked him.
i asked him what _ _ _ .
12、when does the train arrive?please tell me.
please tell me _ _ _ _
13、do they want fried chicken?he asked the boys.
he asked the boys _ they ____ fried chicken.
14、was the watch made in Shanghai?i don't know.
i don't know _ the watch _ made in Shanghai.
1)we are sure that he _ (go) th school tomorrow.
2)do you know who __ (be) the first man to talk on the room?
3)could you tell me where the post office (is)?
4)our father said that he _ (will) buy a new computer.
5)i hear that he____ (swim)in the sea yesterday.

1、light travels faster than sound. my teacher told me1 my teacher told me that light travels faster than sound.2、there will be a meeting in five days. jack didn't know.2 jack didn't know that there ...

Connect the following sentences into compound sentences with object clauses
These flowers are form Guandong.she said
Light travels faster than sound.my teacher told me
There will be a meeting in five days.Jack didn't know
Can they speak French?I want to know
Are the children playing games?Tell me
Have you finished your homework yet? Mr.Zhao asked Ma chao
How many people can you see in the picture?Who know?
Where di she park her car?Do you know?
What does he often talk about?The girl wondered
Who knocked at the door so loudly?I don't know
There are seven days in a week .zhe teacher said
As soon as possible,

She said these flowers are form Guandong.
My teacher told me light travels faster than sound
Jack didn't know if there would be a meeting in five days.
I want to know if they can speak French.
Tell me if the children are playing games.
Mr.Zhao asked Ma Chao if he has finished his homework.
Who knows how many people you can see in the picture
Do you know where she parked her car?
The girl wondered what he often talked about.
I don't know who knocked at the door so loudly.
The teacher said there are seven days in a week

This is the first answer, mainly because the classification of this question is not correct, so no one answered
If there are no questions, please click the select as satisfactory answer button

Change two sentences into a compound sentence
Jim told me . He likes to learn Chinese.

Jim told me (that) he like to learn Chinese
Note: that is enclosed in brackets, which means that is available or not,
Because, in the object clause, the conjunction can be omitted

Change an English sentence into a compound sentence
Studying without relaxing isn't good for health

It's not good for health when you study without relaxing.

Finding the second derivative of the function y = ex cosx