Question

plzzz solve this,it's very important..plz help me.....​

Answer 1

Answer:

10

answer in the attachment..

Answer 2

Answer:

x = √2 + √3

1/x = 1/ √2+√3

= √2-√3. ( by rationalizing the denominator (

So x² + 1/x² = (√2+√3)²+(√2-√3)²

= 2+3+2√6+2+3-2√6

= 10...….