When a 3-digit number is written two times, it becomes a 6-digit number.
Show that it can be devided by 7
A 6-digit number, 53ab98, is divisible by 99. Find the values of a and b.
A palindrome 63aba36 is divisile by 3. Its last 3 digits from a number that is a multiple of 7. Find the value of a and b
It is given (r-s) = 4 and (t-s) = 9
Find the value of r2+s2+t2-rs-st-rt.
It is given (a+b)2 = 1, (a-b)2 = 4 and (a+b)2 = 64
Find the value of \(\dfrac{a}{b}+\dfrac{b}{a}\)
Evaluate (6+1)(62+1)(64+1)(68+1)(616+1).
It is given x2 - 5x + 1 = 0. Find the value of x2 + \(\dfrac{1}{x^2}\)
It is given m + n = 5 and mn = 6. Find the value of m3 + n3