(-1)2008次方-(-2)2010次方×(-0.5)2009次方÷丨2/9丨×9/2
问题描述:
(-1)2008次方-(-2)2010次方×(-0.5)2009次方÷丨2/9丨×9/2
答
(-1)2008次方-(-2)2010次方×(-0.5)2009次方÷丨2/9丨×9/2
=(-1)^2008-(-2)×(-2)^2009×(-0.5)^2009÷(2/9)×9/2
=1+2[(-2)×(-1/2)]^2009×9/2×9/2
=1+2×(1)^2009×9/2×9/2
=1+91/2
=46.5
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