简便计算4^1001*0.5^2003 和3^18(-1/9)^8如题

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简便计算4^1001*0.5^2003 和3^18(-1/9)^8
如题

4^1001*0.5^2003
=2^2002*0.5^2003
=(2*0.5)^2002×0.5
=1×0.5
=0.5
3^18(-1/9)^8
=3^18*(1/3)^16
=(3×1/3)^16×3²
=1×9
=9

4^1001*0.5^2003
=2^2002*0.5^2003
=(2*0.5)^2002×0.5
=1×0.5
=0.5
3^18(-1/9)^8
=3^18*(1/3)^16
=(3×1/3)^16×3²
=1×9
=9