Question

Find the equation of the line which is perpendicular to the line x/a-y/b=1 at the point where the given line meets y-axis.

Answer 1

Answer:

If x and y are the number of possibilities that A can

assume such that the unit digit of A and A3 are

same and the unit digit of A2 and A3 are same

respectively, then the value of x – y is (where A is

a single digit number)