Question

f. a) If x + 1/x = 7, find the value of x^4 (1/x)^4​

Answer 1

Answer:

Answer: The value of is 2599.

Answer 2

x+1/x=7

Squaring both sides

(x+1/x)²=49

x²+1/x²+2=49

x²+1/x²=47

Again squaring both sides

(x²+1/x²)²=2209

x⁴+1/x⁴+4=2209

x⁴+1/x⁴=2205

I guess this is the answer. Hope this helped you!