Category: 0. BLOG

If |G|=pq with p<q primes and p ∤ (q−1), then G is A simple B nonabelian always C no subgroups

In a group, (a⁻¹)⁻¹ equals A e B a⁻² C a² D a Explanation Explanation: The inverse of a⁻¹ is

If a has order 6, then a³ has order A 3 B 6 C 1 D 2 Explanation Explanation: In

In a group, cancellation law means A ab=ba always B a+b=a only C a²=a always D ab=ac ⇒ b=c Explanation

Which property means “a*b is in G” for all a,b in G A Identity B Closure C Inverse D Commutative

For any square matrices A,B of same order, det(I+AB) equals det(I+BA) when A Only if invertible B Only if symmetric

A matrix A satisfies Aᵀ = −A and is 4×4; det(A) can be A Always zero B Any real C

A square matrix A satisfies Aᵀ = A and has size A m ≠ n B 1 × n C

A 1×n matrix is commonly called A Row matrix B Column matrix C Square matrix D Null matrix Explanation A

A matrix of 3 rows and 2 columns has what order A 2 × 3 B 3 × 2 C