Question

if the points (p,0), (0,q) and (1,1) are collinar then 1/p+1/q is equal to​

Answer 1

if that three point are co linear than

determinant is wqual to zero than

pq - p - q = 0,. then

pq = p + q,

l/p + 1/q = 1

so your answer is "1"