Q. If a + b + c + d = 4, then the value of 1(1-a)(1-b)(1-c) + 1(1-b)(1-c)(1-d) + 1(1-c)(1-d)(1-a) + 1(1-d)(1-a)(1-b)
A) 1
B) 0
C) 1+ abcd
D) 4
✔ Correct Answer: 0
Exam Insight
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A) 1
B) 0
C) 1+ abcd
D) 4
✔ Correct Answer: 0
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