If x=(root3+1/root3-1), y = (root3-1/ root3+1), find the value of x^2+ x*y - y^2
Answers
Answered by
1
Answer: x=2+
3
and y=2−
3
.
Then,
x
2
+y
2
={4+3+2
3
}+{4+3−2
3
}
=7+7
=14.
Step-by-step explanation:
Answered by
0
Answer:
mark as brainleast please
Step-by-step explanation:
Correct option is A)
Given,
3
+1
3
−1
=a+b
3
On rationalizing, we get
(
3
+1)(
3
−1)
(
3
−1)(
3
−1)
=a+b
3
2
3+1−2 3
=a+b 3
⇒2− 3
=a+b 3
Comparing a=2,b=−1
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