A) \[x=0,\,\,y=0,\,\,z=0\]
B) \[x\ne 0,\,\,y\ne 0,\,\,z=0\]
C) \[x=0,\,\,y\ne 0,\,\,z\ne 0\]
D) \[x\ne 0,\,\,y\ne 0,\,\,z\ne 0\]
Correct Answer: A
Solution :
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