Question

If x- 1/x =√5 ,find the values of
(1) x^2+
1/x^2
:(i) x + 1/x
(ii) x^2 +
1/2 (¡¡¡) x^3+1/x^3
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Answer 1

Answer:

hope it helps you

sorry for bad handwriting

Answer 2

Answer: Square both sides

x² + 1/x² - 2 = 5

x² + 1/x² = 5+2= 7