Let ‘a’be a real number, n N, and `x=5^(1/3)`. In this representation radicand is___________ and index is___________

Let 'a' be a real number, n in N , and x= root(3)(5) . In this representation radicand is _______ and index is _______.

Valency of N - atom in amines is___________.

Let n be a 5 digit number such that n=304a2 and 3|n then a=

The number of symmetric relations defined on the set {1,2,3,4} which are not reflexive is___________.

The number of time periods for compounded every 6 months, for 2 1/2 years is___________

Let p and q be real number such that x^(2)+px+q ne0 for every real number x. Prove that if n is an odd positive integer, then X^(2)+pX+qI_(n)ne 0_(n) for all real matrices X of order of n xx n .