math
posted by jasmine on .
for a set of three elements find the number of different subsets of 2 elements.use row 3 of pascals triangle

x,y >> x,x; x,y; y,y
posted by jasmine on .
for a set of three elements find the number of different subsets of 2 elements.use row 3 of pascals triangle
x,y >> x,x; x,y; y,y