A.  √(1+y2)/√(1+x2)

B.  √(1+x2)/√(1+y2)

C.  √(1-y2)/√(1+x2)

D.  √(1-y2)/√(1-x2)

1
Correct Answer :
√(1-y2)/√(1-x2)
Explanation :
No Explanation available for this question

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