(41) If positive integers are chosen for r and s, with r greater than> s, then the following set of equations generates a Pythagorean triple (a, b, c).
a=r2− s2
b=2rs
c=r2+s2
Use the values r=7 and s =1 to generate a Pythagorean triple.
a = ___
b = ___
c = ___