Question

if x=4+√15,find the value of (x+1/x) to the power 2

Answer 1

★ Hey mate ★



here is your answer !!


x = 4 + √ 15


1 / x = 1 / 4 + √ 15 × 4 - √ 15 × 4 - √ 15


1 / x = 4 - √ 15


now ,


( x + 1 / x )²


=> (4 + √ 15 + 4 - √ 15 )²


= (8)²


=> 64


hope it helps you dear !!!



hence your answer is ★ 64 ★


thanks !!

Answer 2

Hope this will help ya ☺️