Question

Q2 if x+1/x= 3, find x^2+1/x^2 and x^4+1/x^4​

Answer 1

Step-by-step explanation:

1. X+1/X= 3

X+1=3x

1=3x-x

1=2x

1/2=X=0.5

2. x²+ 1/x²

(0.5)²+1/(0.5)²

0.25+1/0.25

25 + 1(100)/25(100)

25+100/2500

25+1/25

25/1+1/25

625+25/25

650/25

64

3. x⁴+ 1/x⁴

(0.5)⁴+1/(0.5)⁴

0.62+1/0.62

62+1(100)/62(100)

62+100/6200

62+1/62

62/1+1/62

3844+62/62

3906/62

63