100 bounty! Please help me with my studies.

Mathematics in junior high school is actually not very rare, and you should have realized that there is only a little bit of mathematics knowledge in junior high school. So you take out the exam papers every time and study them carefully, and see what is wrong, how many points you lose if you are careless, and how many points you will not lose. I won't list them one by one, or ask the teacher for help, or find the relevant topics by myself, and do more.

In this way, one knowledge point a day, you will have a sense of accomplishment in a few days. It's very good to be interested in math, and it's good for your studies.

If you're learning for the sake of learning, then choose the one you like. If you're in it for the future, then choose what you're good at.

The key is to make sure that you like mathematics, and you will continue to like mathematics in the future, if you like it, your future work will be easy, and you will do well, even if it is not easy, you will not be too tired. So, choose the one you like.

I think interest is very, very important! You said that other students who choose Chinese are better than you in math is only temporary, and if you are interested, you will catch up! And don't say that if you don't learn, it's like this, that's because if you don't learn, you're eating the old book, and you don't think there's any problem with your old book now, and it will be a big problem in the future!

It is recommended that you study math!

I suggest that you still plan for your future work, generally speaking, it is easier to find a job in science than in liberal arts, I think you should choose mathematics, because there are very few people who are really interested in mathematics, you like mathematics grades but generally because you don't do "sea of questions tactics", I believe that if you go to specialize in this subject, you will definitely improve, then your future is unlimited!! Come on, believe in yourself!

If you really don't have the talent in this area, it is recommended that you find another way, and if you continue to work hard, you will not only become less interested in learning, but also a waste of time. Besides, it will be difficult to find a job in the mathematics department in the future, and what society needs now is talents in social ability, not nerds. Let's change departments, so many high schools.

It's not that there is a saying that interest is the best teacher. In fact, as long as you have enthusiasm and work hard, it can be done. If you are not very good at Chinese, you should choose mathematics.

Don't choose the favorite, choose the major you are best at and have the confidence in.

Just say a word like the one without a doubt.

1. [-3,5], 0,64] The definition domain is found by the property that the root number is greater than or equal to zero, and the value range is obtained by the value range of the definition domain.

2. It is easy to see through the index Hanchun number image on the book.

Question 1 Defining the domain : -3 "x"5 . Value range: [0,64].

Area of side area = C (circumference of the bottom surface) XL 2 = 2 faction XR (radius of the bottom surface) XL 2 and C = faction XL = 2 faction XR, i.e. L = 2R

So side area = 2 pie XR2

Base area = Pi XR 2

So the end result is 2:1

The side is a semicircle, let the radius be r, the side area is s1= *r*r 2, let the bottom radius be r, then *r=2* *r, that is, r=r 2, the bottom area is s2= *r*r= *r*r 4, s1 s2=2:1

The length of the conical bus bar l, the radius of the bottom surface r The length of the conical bus bar = the radius of the circle = the circumference of the bottom surface = 2 * pi * r = the arc length of the circle = pi * lr = l 2 side area s'=pi*l*l 2 base area s=pi*r*rs':s=1:2

The auxiliary verb advances, that is, shou turns we into you and turns the full stop into a question mark.