Question

if x+1/x=22 /7 find the value of x^4+1/x^4​

Answer 1

x^(4+1)/x^4 =x^(4+1-4) = x (Whereas, 1/x^4 =x^-4)

Then,

x+1/x=22/7 or,7x^2+7=22x

or, 7x^2-22x+7=0

then by using shridhor acharjo law