Digital Electronics - Boolean Algebra and Logic Simplification - Discussion

Discussion Forum : Boolean Algebra and Logic Simplification - Filling the Blanks (Q.No. 1)
1.
The Boolean expression C + CD is equal to ________.
C
D
C + D
1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
8 comments Page 1 of 1.

Tuioo said:   3 years ago
According to me, it is C'D'+CD.

Bharath said:   3 years ago
Actually, the answer is C+D.

Aruksha said:   3 years ago
C+CD = C(1+D)
= C.1 (1+A=1 and here we have 1+D which is also equal to 1 According to rule)
= C.
Hence proved.
(1)

KIRAN V said:   5 years ago
C+CD = C(1+D) --> Where (1+D) = 1.
= C(1) = C.
(1)

Jessica said:   10 years ago
Because its not distributive law i.e. C (C+D).

Its C+CD = C (1+D).

=> C*1, C*D = CD.

Deepesh said:   10 years ago
But C+CD = (C+C) (C+D) = C (C+D).

Then how answer equals to C? Can someone explain why not this?

Sushil said:   1 decade ago
But C+CD = (C+C) (C+D) =C (C+D).

Then how answer equals to C?

PRIYA said:   1 decade ago
C+CD = C(1+D) = C.
(1)

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