Q. If x = 5 + 15 - 1 & y = 5 - 15 + 1 , then find the value of x2 - y2.
A) 2√5
B) √5
C) 4√5
D) 3√5
✔ Correct Answer: 3√5
Exam Insight
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A) 2√5
B) √5
C) 4√5
D) 3√5
✔ Correct Answer: 3√5
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