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Các câu hỏi tương tự
Tìm nghiệm nguyên dương của phương trình:
2016/x+y + x/y+2015 + y/4031 + 2015/x+2016 = 2
Tìm nghiệm nguyên dương của pt:
2016/(x+y) + x/(y+2015) + y/4031 + 2015/(x+2016)
Cho P(x) = (x2 - 1/2 x - 1/2)1008
Nếu P(x) = a2016x2016 + a2015x2015 + ..... + a1x + a0
thì tổng a0 + a2 + a4 + .... + a2014 là ?
\(\dfrac{x+1}{2015}+\dfrac{x+2}{2014}=\dfrac{x+3}{2013}+\dfrac{x+4}{2012}\)
Tập hợp các giá trị của x thỏa mãn là
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
\(B=\dfrac{1}{\sqrt{x}+\sqrt{x+1}}+\dfrac{1}{\sqrt{x+1}+\sqrt{x+2}}+...+\dfrac{1}{\sqrt{x+2015}+\sqrt{x+2016}}\)với x = 2017
Chứng minh rằng:
1+2015+20152+20153+...+20157= 2016.(1+20152)(1+20154)
Bài 1:
a) CMR:(x+a)(x+b)(x+c)x3+(a+b+c)x2+(ab+bc+ca)x+ab
b) Áp dụng:
(1+a)(1+b)(1+c)
c) Cho a,b,c hoặc 1. CMR:
1 hoặc a+b+c-(ab+bc+ca)+abc
Bài 2: S 1+2+3+4+...+99+100
Bài 3
So sánh A và B biết
A20162017+1/20161018
B 20162015+1/20162016+1
A và B có dấu gạch là dấu phân số
Mấy bạn giúp mk được câu nào thì giúp nha cảm ơn nhìu
Đọc tiếp
Bài 1:
a) CMR:(x+a)(x+b)(x+c)=x3+(a+b+c)x2+(ab+bc+ca)x+ab
b) Áp dụng:
(1+a)(1+b)(1+c)
c) Cho a,b,c < hoặc = 1. CMR:
1> hoặc = a+b+c-(ab+bc+ca)+abc
Bài 2: S= 1+2+3+4+...+99+100
Bài 3
So sánh A và B biết
A=20162017+1/20161018
B= 20162015+1/20162016+1
A và B có dấu gạch là dấu phân số
Mấy bạn giúp mk được câu nào thì giúp nha cảm ơn nhìu
Cho N=\(\dfrac{x+3}{x+1}\)
a) Tính giá trị của N khi x thỏa mãn: \(x^2-x=0\)
b) Tìm GTLN của bt F=\(\dfrac{1}{x^2-9}.N\)