Following is the K-map of a Boolean function of five variables P, Q, R, S and X. The minimum sum-of-product (SOP) expression for the function is
A. $$\overline {\text{P}} \overline {\text{Q}} {\text{S}}\overline {\text{X}} + \overline {\text{P}} \overline {\text{Q}} {\text{S}}\overline {\text{X}} + {\text{Q}}\overline {\text{R}} \overline {\text{S}} {\text{X}} + {\text{QR}}\overline {\text{S}} {\text{X}}$$
B. $$\overline {\text{Q}} {\text{S}}\overline {\text{X}} + {\text{Q}}\overline {\text{S}} {\text{X}}$$
C. $$\overline {\text{Q}} {\text{SX}} + {\text{Q}}\overline {\text{S}} \overline {\text{X}} $$
D. $$\overline {\text{Q}} {\text{S}} + {\text{Q}}\overline {\text{S}} $$
Answer: Option B
This Question Belongs to Electronics And Communications Engineering >> Digital Electronics
In which of the following base systems is 123 not a valid number?
A. Base 10
B. Base 16
C. Base 8
D. Base 3
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