22．函数f(x)={(12)x(x⩾1)f(x+2)(x<1)f(x)=\left\{{\left.\begin{array}{l}{{{({\frac{1}{2}})}^x}({x\geqslant 1})}\\ {f({x+2})(x<1)}\end{array}\right.}\right.f(x)={(21)x(x⩾1)f(x+2)(x<1)，则f(−1+log43)=f(-1+\log _{4}3)=f(−1+log43)=___36\frac{\sqrt{3}}{6}63___．