Question

Question number (iii)​

Answer 1

Answer:

x=x1 is your answer

Step-by-step explanation:

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Answer 2

Answer:

6

Step-by-step explanation:

(x + 1/x)² = x² + 1/x² + 2(x)(1/x)

→ 2² = x² + 1/x² + 2

→ x² + 1/x² = 2 ..(1)

(x - 1/x)² = x² + 1/x² - 2(x)(1/x)

→ (x - 1/x)² = 2 - 2 {from (1)}

→ x - 1/x = 0 ..(2)

(x - 1/x)³ = x³ - 1/x³ - 3(x)(1/x)(x + 1/x)

→ (x - 1/x)³ = x³ - 1/x³ - 3(x + 1/x)

→ 0 = x³ - 1/x³ - 3(2) {from (2)}

→ x³ - 1/x³ = 6