If \(y = \sqrt{ax-b}\) express x in terms of y, a and b
Given that \(81\times 2^{2n-2} = K, find \sqrt{K}\)
Simplify \(\frac{4}{x+1}-\frac{3}{x-1}\)
If y varies inversely as x\(^2\), how does x vary with y?
If \(tan x = \frac{1}{\sqrt{3}}\), find cos x - sin x such that \(0^o \leq x \leq 90^o\)