Q. If 9x2 + 16y2 = 60 and 3x + 4y = 6, then the value of xy is
A) 1
B) -1
C) 2
D) -2
✔ Correct Answer: -1
Exam Insight
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A) 1
B) -1
C) 2
D) -2
✔ Correct Answer: -1
-
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