林泓儒的部落格

1.

3~27

24

2.

N=6

A:1/6+1/5

B:1/36+1/49

3.

A:11+sqrt(61)

B:11+sqrt(65)

4.

24x=30

X=5/4

7*5/4=8…..

5.

1/2+1/6+1/12=9/12

6.

A: 80/r

B: 120/r

7.

4x>y

X=2

Y=7 6 5 4 3 2 1

8.

9*11

9.

550-101+1=450

550-542+1=9

1/50=2%

10.

B+c+b=c

B=0

11.

17*6+16*2+12*2+11*2/12

12.

13 26 39 42 65 78 91

87 74 61 58 35

13.                                                                                 

35.7~47.6

14.

77-18=59

15.

A

B

F

I

N

S

16.

2.5

5.6

6.2

7.8

8.8

17.

4

2.5

5

1.5

5.5

4

18.

-3<2-x<3

-5<-x<1

5>x>-1

2x+1>5

2x+1<-5

x>2

x<-3

19.

X^2-16

X=4

X=sqrt(17)

X=sqrt(21)

X=5

X=6

20.

180-110=70

70-55=15