来自柳荣其的问题
定义一种新运算,其规则为a※b=a2-b2,则(5※4)※2=______.
定义一种新运算,其规则为a※b=a2-b2,则(5※4)※2=______.
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2020-03-22 17:17
定义一种新运算,其规则为a※b=a2-b2,则(5※4)※2=______.
定义一种新运算,其规则为a※b=a2-b2,则(5※4)※2=______.
(5※4)※2,
=(52-42)※2,
=9※2,
=92-22,
=77,
故答案为:77.