(A) 1
(B) w
(C) w2
(D) it does not contain an inverse
Category: Maths
The logical form of (A∪B)’ = A’ ∩ B’ is ?
(A) ∼(p ∨ q) = ∼p ∧ ∼q
(B) ∼(p ∧ q) = ∼p ∨ ∼q
(C) ∼p ∧ ∼q = ∼(p ∨ q)
(D) ∼p ∨ ∼q = ∼(p ∧ q)
The inverse of q → p is ?
(A) p → q
(B) ∼p → ∼q
(C) ∼q → ∼p
(D) none of these
The shaded region of the venn diagram
is represented by ?
(A) A’
(B) B’
(C) A – B
(D) B – A
If the number of elements in a set S are 5. Then the number of elements of the power set P(S) are ?
(A) 5
(B) 6
(C) 16
(D) 32
The multiplicative identity of a complex number is ?
(A) (0,0)
(B) (1,0)
(C) (0,1)
(D) (1,1)
(−i)−19 = ?
(A) 1
(B) −1
(C) i
(D) −i
(2,6) ÷ (4,2) = ?
(A) (1,1)
(B) (1,2)
(C) (2,1)
(D) (2,2)
The product of complex numbers (4,3) and (5,−6) is ?
(A) (18,3)
(B) (18,−3)
(C) (38,9)
(D) (38,−9)
If x2 + 1 = 0, then x = ?
(A) 1
(B) i
(C) ± 1
(D) ± i