Question

if x=1/x-5 find }p value of:(i) x-1/x (x) }} (iii) x*3-1/x*3


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Answer 1

${\small{\bold{\purple{\underline{Answer}}}}}$

Given,

x + 1/x = 5

To find,

Value of x⁴ + 1/x⁴

So,

(x+1/x)² = (x²+1)/(x²+2)

(x²+1)/(x²+2) = (5)²

(x²+1)/x² = 25 - 2 => 23

(x²+1/x²)² = x⁴+1/x⁴+2

(x⁴+1)/(x⁴+2) = (23)²

(x⁴+1)/x⁴ = 529 - 2

(x⁴+1)/x⁴ = 527

Learn more: Find the value of x

brainly.in/question/13150368

Answer 2

Step-by-step explanation:

${\small{\bold{\purple{\underline{\blue{\boxed{Answer}}}}}}}$

Given,

x + 1/x = 5

To find,

Value of x⁴ + 1/x⁴

So,

(x+1/x)² = (x²+1)/(x²+2)

(x²+1)/(x²+2) = (5)²

(x²+1)/x² = 25 - 2 => 23

(x²+1/x²)² = x⁴+1/x⁴+2

(x⁴+1)/(x⁴+2) = (23)²

(x⁴+1)/x⁴ = 529 - 2

(x⁴+1)/x⁴ = 527

Learn more: Find the value of x

brainly.in/question/13150368