Compere the number P=888...888x333...333 and Q=444...444x666...667,where each has 2017 digits
Toán tiếng anh: A rectangle has length pcm and width qcm, where p and q are integer. If p and q satisfy the equation pq+q=13+q2 then the maximum possible area of the rectangle is.........
the sum of the digits of a certain two - digits number is 11. when you reverse its digits you decrease the number by 9
There're four black box and each box has the same number of marbles. Only one of the following statements is correct about the number of marbles in it.
- Five or Six
- Seven or Eight
- Six or Seven
- Seven or Five
How many marbles are there in each box?
Find all natural numbers having two digit , knowing that twice the units digit 1 more than the ten digit , and if we write that two digits in reverse order, we get a new number which is 27 less than the old one
a rectangle has length p and breadth p where p,q are intergers . If p, q satisfy the equation pq+q=13+q^2. What is the maximun of the area of the rectangle?
Let N be the langest number ò region that can be formed by drawing 2016 straight lines on a plane. Find the sum ò all digits of N.
Toán tiếng anh đó
The number of solutions to the polynomial x^8+8 is...
m and n are positive integers such that 10(m^2+1)=n^2+1\(\), where m^2+1 \(\) is a prime number. The number of pairs (m,n) is...
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