FREE IGNOU MCS-013 SOLVED ASSIGNMENT 2018-19

Question 5:
(a) How many words can be formed using letter of DEPARTMENT using each letter
at most once? (2 Marks)
i) If each letter must be used,
ii) If some or all the letters may be omitted.

(b) Show using truth table whether (P ∧ Q ∨ R) and (P ∨ R) ∧ (Q ∨ R) are equivalent
or not. (2 Marks)

(c) Explain whether (P ∧ Q) → (Q → R) is a tautology or not. (3 Marks)

(d) Find dual of boolean expression for the output of the following logic circuit.

(3Marks)

 

Question 6:
(a) How many ways are there to distribute 10 district objects into 4 distinct boxes
with:
i) At least two empty box.
ii) No empty box.
(2 Marks)

(b) Explain principle of multiplication with an example. (2 Marks)