If a,b and c are positive numbers with no common factors and such that 1/a + 1/b = 1/c then which of the following is true?
a) (a+b) is a square.
b) (b+c) is a square.
c) (c+a+b) is a square.
d) None of these.
a) (a+b) is a square.
b) (b+c) is a square.
c) (c+a+b) is a square.
d) None of these.
