Question

equal to 5 minus root 3 divided 5 + root 3 and Y equal to 5 + root 3 divided 5 minus root 3 show that x squared minus y square equal to minus 3 root 3 divided 11

Answer 1

Hi,

Here

Given that
X = 5 - √3 / 5 + √3
Y = 5 + √3 / 5 - √3

now
x² = 28 - 10√3 / 28 + 10√3
y² = 28 + 10√3 / 28 - 10√3

x² - y² = done in photo I took

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