Question

if x = rute2+1/rute2-1 and y = rute2-1/rute2+1 find the value value of x square + y square + xy​

Answer 1

Step-by-step explanation:

$x \: = \: \sqrt{2} + 1 \: \div \: \sqrt{2} - 1 \:$

$y\: = \: \sqrt{2} - 1 \: \div \: \sqrt{2} + 1 \:$

root 2 = 1.414

So, x = 5.82

y = 0.1715

According to this question,

= x^2 + y^2 + x× y

= ( 5.82 )^2 + ( 0.1715 )^2 + 5.82 × 0.1715

= 33.87 + 0.0294 + 0.9981

= 34.89

Answer 2

Step-by-step explanation:

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