Each of the numbers 1, 2, 3 and 4 is substituted, in some order for p, q, r and s. The greatest possible value of pq+rs is:
Ajay asked his friend Arnav to substitute the numbers 1, 2, 3 and 4 in the equation pq+rs, such that the number obtained has the greatest value. Can you help Arnav find the greatest value?
When 5pq(p2−q2) is divided by 2p(p+q) and substituting p=3,q=1; the value obtained is:
Find the value of k if PQ and RS are parallel, given P(1, 2), Q(4,5) and R(3, 4), S(8, k).