Class: SS1 Subject: FURTHER MATHS Solve the following questions:
x^(x)=9^(x+81)
(9^(x)-9^(-x))/(3^(x)+3^(-x))=-81\times 3^(x)
If
x\sqrt((2)/(x-1))=(x-1)^(x-2)
x^(x^(2))=((1)/(\sqrt(2)))^((1)/(4))
find
x