The product of two rational numbers is always a _____ number
Fill in the blanks : (i) The product of two positive rational numbers is always___ (ii) The product of two negative rational numbers is always___ (iii) If two rational numbers have opposite signs then their product is always___ (iv) The reciprocal of a positive rational number is ___ and the reciprocal of a negative rational number is___ (v) Rational number 0 has___ reciprocal. (vi) The product of a rational number and its reciprocal is ___ (vii) The numbers ___and ___are their own reciprocals. (viii) If M is reciprocal on N,then the reciprocal of N is___