Question

explanation is also needed​

Answer 1

Answer:

Step-by-step explanation

x^2-5x+1=0

By the method

X=-b±√b^2-4ac/2a

=>X=-(-5)±√(-5)^2-4(5)(1)/2(1)

=>X=5±√25-1/2(1)

=>X=5±√24/2

Now,x^10+1/x^5

=>X^10/x^5+1/x^5=x^10-5+x^-5

=>X^5+x^-5=x^5+(-5)=x^0

=>1

Hence proved..

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