Let `20!=p.10^q`, where p and q are integers and p is not a multiple of 10. If the unit digit of p is r, then `r+q` is equal to

{(p wedge (p to q)) wedge (q to r)} to r is equal to

Let p, q and r be three statements, then (p to q) to r is equivalent to

Let p, q and r be three statements, then (~p to q) to r is equivalent to

A = [[p,q],[r,s]] where p, q, r and s are positive integers. If A is symmetric matrix, |A|=20 and p = q, then find how many values are possible for s.

Let A= [{:p q q p:}] such that det(A)=r where p,q,r all prime number, then trace of A is equal to

Let A= [{:p q q p:}] such that det(A)=r where p,q,r all prime number, then trace of A is equal to

Let A={p,q,r,s} and B ={q,r,p,s } , Are A and B equal ?

In the binary equation (1p101)_(2)+(10q1)_(2)=(100r00)_(2) where p, q and r are binary digits, what are the possible values of p, q and r respectively?