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Minimise the following problems using the Karnaugh maps method.

Z = f(A,B,C) = imageimage image + imageB + ABimage + AC

in Digital Logic
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A'B'C'                         :  000  

A'B = A'BC' + A'BC    :   010 | 011

ABC'                          :    110

AC = AB'C + ABC   :     101 | 111

= min { 0, 2, 3, 5, 6, 7}

Now solve k- Map..

0 1 3 2
4 5 7 6

So, 2-3-6-7, 0-2, and 5-7 can be combined. We get

B + AC + A'C'
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@Arjun sir sequence is ABC so A should be MSB ..

Expression will be : B {2,3,6,7} + AC {5,7} + A'C' {0,2}

= B + AC + A'C'
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 why we are wrinting A'B = A'BC' + A'BC   

similarly AC = AB'C + ABC ..??

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Yes . U r right.
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The above function can be represented using K- map as ->

                    A'B'                   A'B                     AB                     AB'

  C'              1              1             1  
   C                1             1              1

So there are  1 Quad and 2 pairs are formed .

After solving K-map We get minimized solution as -    A'C'+B+AC