What is it like to know math at all?

Like me, I don't know math, some people are good at math, like I just can't know it at all, I am often ridiculed by my classmates and friends, and the teacher thinks I'm not a fool, but I just can't understand it, because they don't feel that these numbers have any logic at all, and they have to memorize some general formulas.

Multiple choice questions all rely on Meng Da to write only one solution, every time you can only sleep there or in a daze, after all, mathematics will not write anything, in fact, quite annoying, every time you teach mathematics, it is basically a blank paper, if there are not a few multiple-choice questions, fill-in-the-blank questions can be covered with a big question can copy a question step.

The experience of not knowing math at all is really very devastating, for example, in daily life, we need to use arithmetic, if you don't know these basic things, then go to the street to buy things, you will be very afraid of being deceived by others, you will be especially afraid of being fooled by others.

When I was in junior high school, I was okay with math, but in high school, because math was difficult, I couldn't keep up at all, and I was at the bottom of the class in every exam, and I was in a hurry. Every time I want to learn well, but I can't learn no matter how I learn, so I am very distressed.

Like my little brother is such a child, he doesn't know anything about mathematics, he can't even learn addition and subtraction, sometimes he has to talk about some simple addition and subtraction for a long time, to be honest, I feel that my brother's mind is very stupid, and he can't turn a corner at all, it's really too depressing.

Like I'm a very stupid person.,And I'm particularly insensitive to mathematics.,Not knowing math at all can be said to be particularly clumsy.,Sometimes because of the calculation of accounts, mistakes are often made.,This experience is particularly depressing and embarrassing.,I'm simply the type without a brain.。

1 All 2x-1 x+1, solution x 2

x+8 4x-1, solution x 3

So the group solution set of inequalities is x 3

Solve the first inequality, x 2

Solve the first inequality, x 3

Take its intersection, x 3

The practice of mathematics lies in the idea of substitution, through substitution, the transformation of unknown problems into known problems for easy solving.

A simple mathematical problem consists in placing two different quantitative relationships at the opposite ends of mathematical symbols, and obtaining the simplest representation by simply calculating the same quantitative representation at both ends.

x is greater than 3, I hope it can help you.

Hello is wrong.

4. 1. Age of Xiaoya: (46-2) 4 = 11 (years) 2. Total distance s = km) Time t = 2,7 3 = hours when the speed is 3 km) Arrive late by hours.

Hope you are satisfied and I wish you happiness!

It's too lazy to go straight to the answer.

3 questions 800 20 = 40 pieces, 4 questions 6 * (4-1) = 18 minutes, 5 questions 15 3 = 5 pieces 6 questions 15 * 4-4 = 56 pieces.

(1) Original = 2 3-6x 3 3-1 3x3 3 = 2 3-2 3- 3

2) Original = 2+3 2-4-2 2+1

3) Solution: =2 -4 1 (-2)=12x=(2 12) 2=1 3

x1=1+ 3 x2=1- 3(4)Solution: x -2x=-4 3

x²-2x+1=-4/3+1

x-1)²=-1/3＜0

x-1) 0 equation without solution (5) Drawing is omitted.

a′(2,3)

It's all some basic questions, it seems that the textbook hasn't been learned yet, you study the textbook first.

√3-2√3-√3=-√3

3 2-4-2 2+1= 2-117, matching method.

x²-2x+1=3

x-1）²=3

x-1=±√3

x=1±√3

18. It's still the formula, let's match it yourself

1 original = [ (4x5) + 16x5)] (5) = [ (5) x (4) + 5) x (16) (5) = [ (5) ( 2 squared) + 4 squared)] 5) = 2 + 4 = 62

Original = (3) + 3x25)- 27) [ (27) x (27)].

(3) + 3x5 squared) - 3x9) 27 = (3) + 5 (3) - 3 (3) 27

3 primitives = (5x25) + 3x25) + 5x9) - 16x3) = (5x5 squared) + 3x5 squared) + 5x3 squared) - 4 squared x 3).

I won't, I'm a scumbag--

Ability improvement: 1. The length of the arc calculated by using the arc length formula. 2. The arc length obtained in step one is the required side length of the bottom surface of the cone.