问题
填空题
规定“⊗”是一种运算且a⊗b=ab-ba,则4⊗(3⊗2)=______.
答案
4⊗(3⊗2)=4⊗(32-23),
=4⊗(9-8),
=4⊗1,
=41-14,
=4-1,
=3.
故答案为:3.
规定“⊗”是一种运算且a⊗b=ab-ba,则4⊗(3⊗2)=______.
4⊗(3⊗2)=4⊗(32-23),
=4⊗(9-8),
=4⊗1,
=41-14,
=4-1,
=3.
故答案为:3.