Digital logic : Find the value of f

Question

I know , this is pretty basic question , still could not get it right

I got the answer as $B + \overline{C}$

Am I doing something terribly stupid here ?

Answer 1

It's easy . just use the k Map in this type of questions. it will take u fast to the simplification. the terms here one are. 0,2,4,6. all lies at the 

bc->

a |

	00	01	11	10
0	1			1
1	1			1

subcube of 4 will be formed. and will give answer c'. now we are just oring b with it. so answer is b+c'.

Answer 2

u will be getting function as:
A'B'C'+ B'   I0

A'BC'+B    I2

AB'C'+B'  I4

ABC'+B   I6

A'B'C'+B'+A'BC'+B+AB'C'+B'+ABC'+B
B'[A'C'+1]+A'BC'+B[1+AC']
B'+A'BC'+B
1+A'BC' = 1
so (b) option 

Comments

Hi kunal ,

A'B'C'+ B'   I0

A'BC'+B    I2

AB'C'+B'  I4

ABC'+B   I6

Could not understand this B' part. Can you please explain ? I think I am reading the question improperly. 

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there is or gate in that OR gate iwo input are feeded one input is output of mux and other input is the selection line as B so provided as per according to eight combination.?? wt the final ans.??

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its a active high enabled MUX!

Answer 3

I think Its enable active high so its minterm should be 0
therefore 0+B= B should be answer!

Comments

@sir can u provide me some good link to refer for different types of enables