If f={(a, 1), (b, -2), (c, 3)}, g={(a, -2), (b, 0), (c, 1)} then f2+g2=
If f(x)=αx+β and f={(1, 1), (2,3), (3,5), (4, 7)} then the values of α, β are
Consider the function f(x)=x sin(1/x),x≠0 and f(0) =0,then
If A={1,2, 3}, B= {a, b, c, d}, f={(1,a), (2, b), (3, d)}, then f is