Question

please tell me questions I will mark you brainliest ​

Answer 1

Step-by-step explanation:

q6. x= 2+root 5

x2= (2+root5 )2 =9+ 4root 5

{using identify (a2 +b2 )

1/x2 = 1/x2

$1 \div 2 + \sqrt{5 {?}^{2} }$