Question

c quetion braket type answer

Answer 1

it's easy brother class 9th NCERT Book Mai answer hai iska

Answer 2

x + 1/x = √5

(x + 1/x)² = 5

x² + 2*x*1/x + 1/x² = 5

x² + 2 + 1/x² = 5

x² + 1/x² = 5 - 2

x² + 1/x² = 3

(x² + 1/x²)² = 3²

x^4 + 2 * x² * 1/x² + 1/x^4 = 9

x^4 + 2 + 1/x^4 = 9

x^4 + 1/x^4 = 9 - 2

x^4 + 1/x^4 = 7

Hope this helps! :)