If x= 7+4V3 and xy = 1, then
1/x²+1/y²=
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Answer:
y^2+x^2/x^2×y^2
= x^2 + y^2
= 194.(ans)
Step-by-step explanation:
let, a =7
(a+b)^2+ (a-b)^2
2(a^2+b^2)
2(7^2 + 4root 3 ^2 )
= 2×(49+48)
= 2×97
= 194.
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