Math is so difficult, do you have seniors to give guidance?

As a person who has come over, although it is difficult to use such advanced mathematics in junior high school before I entered the society, in fact, junior high and high school are still facing fateful exams such as the high school entrance examination and the college entrance examination. I can keep up in junior high school because many theories and formulas can still keep up as long as I work hard to memorize them and do a lot of exercises; The high school said that it could not be improved, just because of the tight time, and there was still a lot of time to prepare for the college entrance examination. Here I recommend you an iFLYTEK learning machine, the reason is that it can test your weak points with few anchor questions.

In this way, you can save a lot of time and not have to do a lot of exercises over and over again. Mathematics is a compulsory subject, and there are a lot of scores, so don't give up.

I don't know if the landlord is junior high school or high school, but if you are in junior high school, you can still keep up, but if you are in high school, it is difficult to say that you have improved.

The numerator is physicochemical so that the denominator is not zero.

Connect EF

EFO is the circumferential angle of the diameter of the circle, which is 90 degrees.

coseof=fo/eo=

and eof+ aob=90

The sine of one acute angle is equal to the cosine of the remaining angles.

So sinaob=coseof=4 5

Therefore d is correct.

The reason why you find math difficult is because you haven't found the skills and methods to learn math.

Before the teacher talks about the new lesson, you will have a general understanding of what the teacher is going to talk about in class, mark the knowledge points that you don't understand when previewing, and listen carefully during the class to achieve twice the result with half the effort.

Which subject is not difficult mainly depends on how much time and effort you put into learning.

Learning math well is also a basic knowledge.

Then it needs to be consolidated in combination with brushing questions.

You do this for a while.

Then the results will improve very quickly.

I think you should know that the triangle CDF is a right triangle, Cd is equal to 10, CF is equal to 8, as FE perpendicular CB to E, because the angle FCD plus the angle CDF is equal to 90 degrees, and the angle FCD plus the angle FCE is also equal to 90 degrees, so the angle CDF is equal to the angle FCE, and since both triangles are direct triangles, the two triangles are similar triangles. So the sinaob in the problem is actually finding sincdf equal to 8 10 (i.e. 4 5).

What wasn't so hard at first was that you had lost confidence

It's true that the math is getting harder and harder, but don't be afraid.

In fact, students who are not good at mathematics can also get good scores when they get to the official exam.

My experience is:

Because the formal big test (except for the small test, which is usually more difficult) questions are relatively simple, and the optional questions are even more so, so you must be careful and try to ensure that you get all the scores in this part.

The first three big questions try to do it right and complete, the last three questions, the first question is done, and the one that can be done is better than possible, but the last finale question, I usually only do one question and give up, if three questions, the second question is simple can also be done.

There are about ten minutes left to check the basic questions to make sure that you will get everything right.

As a person who has come before, I think that in general, it is necessary to allocate time and do a good job in basic questions, so as to get the points.

If you do it according to the above method, as long as it is not a difficult test paper, you can generally get more than 120 points.

Of course, this is just a trick for the exam, just because I really don't have the heart to work hard to learn math, and it would be better if you can learn math steadily.

The necessity is insufficient.

For example, x=, y=, and the sum of squares is less than 1,

Calculated on the basis of 22 working days.

98 yuan. Satisfied with the adoption of O.

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