Các hoạt động trên hai số sản xuất một số bằng tổng của họ trừ đi 2. Giá trị của (... ((1 @ 2) @ 3) ... @ 2017) là ???
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Bài thi số 3
19:25
Câu 1:
A man drove a car from A to B at speed 60km/h. After arriving B, he took a rest for 30 minutes then turned back to A at speed 40km/h. Known that he started from A at 7:00 am and he reached A again at 3:15pm on the same day. The distance between A and B is km.
Câu 2:
The minimum of the expression is
Câu 3:
Given that is a positive integer such that and are perfect squares.
The sum of such integers is
Câu 4:
Given two triangles and...
Đọc tiếp
Bài thi số 3
A man drove a car from A to B at speed 60km/h. After arriving B, he took a rest for 30 minutes then turned back to A at speed 40km/h. Known that he started from A at 7:00 am and he reached A again at 3:15pm on the same day. The distance between A and B is km. Câu 2:
The minimum of the expression(x+2)(x+3)(x+6)$)
is
Câu 3:
Given that
is a positive integer such that and 
are perfect squares.
The sum of such integers is
Câu 4:
Given two triangles
and 
. Known that 
, 
and 
.
If
then 
Câu 5:
How many real numbers are there such that 
?
Answer: There are numbers.
Câu 6:
The operation
on two numbers produces a number equal to their sum minus 2.The value of @3\)...@2017\)$)
is
Câu 7:
ABC is a triangle. AM is the bisector of angle CAB. Given that AM = 4cm, AB = 6m and AC = 12cm.Then the measurement of angle BAC is degrees. Câu 8:
In the equation above, where 
is a constant.The greatest possible value of such that the equation has at least one solution is
Câu 9:
and 
are positive integers such that =n^2+1$)
, where 
is a prime number.
The number of pairs$)
is
Câu 10:
Given that=\frac{x^2}{2x-2x^2-1}$)
.
Calculate:
+f\(\frac{2}{2016}\)+f\(\frac{3}{2016}\)+...+f\(\frac{2015}{2016}\)+f\(\frac{2016}{2016}\)$)
=
(Input the answer as a decimal in its simplest form) Nộp bài
19:25 Câu 1:
A man drove a car from A to B at speed 60km/h. After arriving B, he took a rest for 30 minutes then turned back to A at speed 40km/h. Known that he started from A at 7:00 am and he reached A again at 3:15pm on the same day. The distance between A and B is km. Câu 2:
The minimum of the expression
Given that
The sum of such integers
Given two triangles
If
How many real numbers
Answer: There are numbers
The operation
ABC is a triangle. AM is the bisector of angle CAB. Given that AM = 4cm, AB = 6m and AC = 12cm.Then the measurement of angle BAC is degrees. Câu 8:
The number of pairs
Given that
Calculate:
(Input the answer as a decimal in its simplest form) Nộp bài
Let P(x) be a polynomial of degree 2015. Suppose P(n)=\(\dfrac{n}{n+1}\) for all n =0, 1, 2, ..., 2015. Find the value of P(2016)
.Bottle A contains 15% syrup. Bottle B contains 40% syrup. When these 2 bottles of syrup are mixed, the syrup content is 30% and the total volume is 600ml. How much syrup is in the bottle A at first?
Xem chi tiết
find the volume of a pyramid such that the base area is 100cm2 and the height is 9cm
Xem chi tiết
IV. Give the correct forms of the words in parentheses (1 pt). 21. We go ____________________ almost every summer. (camp) 22. Ho Chi Minh city is the _______________ city in Viet Nam. (large) 23. The school children like the summer __________________ best. (vacate) 24. There are three _______________ in this festival: water-fetching, fire-making and rice-cooking. (compete)
Rút gọn biểu thức :
Tính giá trị của đa thức biết x-y=5
Cho x+y=3.
x2 + y2+ 2xy−4x−4y +1
Tính giá trị biểu thức
a) Tìm x biết: 6x3 – 24x = 0.
b) Tìm a để đa thức (2x3_ 4x2+6x+a) chia hết cho (x+2)
1, Tìm x, biết
1, Tìm x, biết
|2017−x| + |2018−x| + |2019−x| 2
Đọc tiếp
1, Tìm x, biết
1, Tìm x, biết
|2017−x| + |2018−x| + |2019−x| = 2