if x = 3 + root 8 find xsquare +1dided by x square
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Hey !!!
x= 3 +√8
By using rationalising process
1/x = 1/3+√8 × 3-√8/3-√8
=> 3-√8/(3)² -(√8)²
=> 3 -√8/9-8
=> 3-√8
1/x = 3-√8
Now , x + 1/x = 3 + √8+(3 -√8)
x + 1/x = 6
Now ,
(x + 1 /x )² = x² + 1/x² + 2x×1/x
=> (6)² = x² + 1 /x² + 2
=> 36 -2 = x² + 1 /x²
Hence , x² + 1 /x² = 34 Answer
Hope it helps you !!!
@Rajukumar111
x= 3 +√8
By using rationalising process
1/x = 1/3+√8 × 3-√8/3-√8
=> 3-√8/(3)² -(√8)²
=> 3 -√8/9-8
=> 3-√8
1/x = 3-√8
Now , x + 1/x = 3 + √8+(3 -√8)
x + 1/x = 6
Now ,
(x + 1 /x )² = x² + 1/x² + 2x×1/x
=> (6)² = x² + 1 /x² + 2
=> 36 -2 = x² + 1 /x²
Hence , x² + 1 /x² = 34 Answer
Hope it helps you !!!
@Rajukumar111
Answered by
0
Answer:
34
Step-by-step explanation:
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