Question

Please answer only these 2 questions (equaction) please step by step method wise please I am begging you all I am very weak in the maths so plese answer please​

Answer 1

Answer:

I am not sure about 1st no. but 2nd is absolutely correct.

Step-by-step explanation:

a) (x+1/x)

x^2+1/x^2=223

=> (x+1/x)^2=223

=> x+1/x= root 223

b) (x-1/x)^2=x^2+1/x^2-2×x×1/x

=>(x-1/x)^2=223-2

=> " =221