Q. What is the value of 2 - 2z + z22 + 2z - z2, when z+2z = 2 ?
A) 2
B) 0
C) 8
D) 4
✔ Correct Answer: 0
Exam Insight
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A) 2
B) 0
C) 8
D) 4
✔ Correct Answer: 0
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