Please help me calculate carefully, thank you

Constellations. Girls just like to play.

Hehehe.

Summary. Hurry··· Math problem help, to solve the process in detail, thank you.

Pro-grade math. High school. Hair.

Do you want to explain the process in detail?

Yes. If you can ask a second question, you can give me an idea first.

Then you give me a detailed process of solving the problem.

The second question makes use of the function image and the range of the first function.

The first question is to ask for guidance.

The first question I will have.

That's the second question, isn't it?

I'll write you both questions.

This is the line of thought for the second question.

I'll sort out the process.

Ask about custom messages].

This is a monotonic function, which is calculated as a unit value, that is, to see how many catties of various fish he can hang without some physical strength.

1 point of physical strength can hang 2 catties of a fish, catty, catty, catty, e3 catty.

Therefore, the hanging e-fish can be hung the most, 357 catties.

120 7 = 17 (times) ......1 (point).

17 21 = 357 (jinjin).

Explanation: Physical strength is limited, and you should be tight on big fishing!

I am "patented", and I do not copy or imitate!

All the e-fish, a total of 357 points, and one physical strength remaining.

Solution: sin a*(1+ 3tan10°)=1sina=1 (1+ 3tan10°).

sina = 1 (1 + tan60° tan10 °) sina = cos60 ° cos10 ° (cos60 ° cos10 ° + sin60 ° sin10 °) (cut chord).

sina=cos60°cos10°/cos50°sina=cos10°/2cos50°

Because a is an acute angle.

So a=50°

(1 1x2) can be split into:

bai1-1/2

1/2x3=1/2-1/3

1/3x4=1/3-1/4

1 nx(n+1)=1 n-1 (n+1).

Du accumulation can be zhi have.

Original DAO = 1-1 (n+1).

According to the principle of the plate, it can be licensed.

Knowledge topic = 1-1 10 = 9 10

I don't understand, what is it all about?

I don't understand, what is it all about?

1x1/2

And so on. At the beginning it was.

Minus 1x1/2

Then there is 1/2x1/3 minus

And so on thank you.

Stay for 30 days: 620 (30 5+24) 30=RMB.

Stay for 24 days: 620 (30 5+24) 24=RMB.

Or: 30 days: 620 (5+24 30) = RMB.

Stay for 24 days: 620 (5+24 30) (24 30) = RMB.

$ per person for 30 days, another $24 for another.

Untie. 30 days for 5 people, that's 150 days, and 1 person for 24 days, which adds up to 174 days.

620 yuan 174 days * 30 days yuan.

620 yuan 174 days * 24 days yuan.

The fairest: 620 (5*30+24)=yuantian.

5 for 30 days: yuan.

1 stay for 24 days: yuan.

According to the number of people, 5 * 30 + 24 = 174,620 174 =, that is, the water fee for one person living for one day is yuan, and then each person can be multiplied by how many days they live to get the water fee they should get, 30*, 24*

5 people: 1 person:

It's up to you how you divide it in the end.