Question

simplify (5^-1 x 3^-1)-1 ÷ 6^-1​

Answer 1

Answer:

(2) & (3). (x^2+1/x^2)×(x^3+1/x^3)=34×198. x^ 5+x+1/x+1/x^5=6732. x^5+6+1/x^5= ... + 1/x^5. => 6^5 = (x^5 + 1/x^5) + (5x^3+5/ x^3)+(10x+ 10/x) ... X^5+1/x^5=6*(6^4-10)-6*165=6726.

Answer 2

Answer:

I think -2.5 ............