A 50 digit number, divisible by 13, is as follows -
Find the value of m.
m = 9 works.
The temperature on a unit sphere x^2 + y^2 + z^2 = 1, is given by a temperature distribution
T(x,y,z) = 50.(xy + yz)
What is the temperature difference between the coldest and warmest point on the sphere?
