Senior 1 Math Exercises on Sets, please

Piece; represents the intersection of the straight line 2x-y=1,x+4y=5, and the intersection is found as (1,1) on the straight line y=x, then d is encapsulated by c;

b=,(1)When a=3,a b=,a b=empty set; (2) When a=1, a b=, a b={1}; (3) When a=4, a b=, a b={4}; (4) When a is not equal to 1, 3, 4, a b = and a b = empty set;

Since a (cub)=,b=,a=,

Scores. k 2 + 4 = (hail with light 2k + 1) line friend 4n = k 4 + 2 = (k + 2) 4

2k+1 is always an odd number.

k+2 may be odd or even.

The source width is contained in m and n

8 Yes, (a,b) and (b,a) are different sets, so the ab set can be equal, a b = so there must be 1,3 elements in the ab set.

a=,b=---2 pairs.

a=,b=---2 pairs.

a=,b=---2 pairs.

a=,b=---2 pairs.

a=,b=---1 pair.

It's not right just now.,It's not in line with the topic of a b=.,This is right for you.。

a=｛x |4x+p<0} closed pei lao={x |x<-p 4} and a are contained in the car lift b

The result is -p 4 less than or equal to -1

So p is greater than or equal to 4

p 4> Kai socks-1 and talk about Sun Bang-p Han talk 4>2

P<4 and P<-8

The value range is p<-8

The set a=,p= q=, so there is: p=,q=

Since p=q, then there is: q=

If q=, then there is: a=0, p=q=

If q=, then there is: a 2 = a + 1, there is a = (1 + 5) 2

cua=,k∈z}

cub=,k∈z}

So there is: a is the true subset of cub and b is the true subset of cua.

I've just learned, so I hope to communicate more in the future.

If all elements of set A are also elements of set B, then A is said to be a subset of B;

If there is an element in b and not in a, and a is a subset of b, then a is said to be a true subset of b.

a.{Yes {x|.}x root number ten} (false).

When x=3, x" root number ten, so { is not {x|x root number ten}, not a true subset.

b.{1,2,3} is a subset (error) of {0,1,2,5}

Element 3 does not belong to the set of Min homozygous {0,1,2,5}

c.｛x|x-1=0} is {x|(x-1)(x+2)=0} of the Mako and Stool set (correct).

x-1=0, then x=1

x-1)(x+2)=0, then x1=1, x2=-2

So, {x|x=1} is {x|x1=1，x2=-2

The true subset of the bridge shed.

d.{-5,7} is {x|x 20} (error).

Elements -5,7 do not belong to the set {x|x²＜20｝

I think this kind of question starts with the concept, I hope it can help you.

c subset is that it can have the same as itself, and the true subset is in addition to itself, so don't understand it, and then ask.

For example, in analytical and computational physics, it is necessary to have knowledge and skills such as mathematical functions and equation solving. (5) Ability requirements: Of course, I am a mathematics teacher. I have brought back many graduating classes of Gao Liquid World Slow High School, and I am currently teaching the first year of high school. Thank you for looking at me.

The square of a3 is less than 10

The latter does not have a 3 in B, and the former is not a subset of the World Bank of the Zoye latter.

c Pair. D7 squared Punch pants 20