Mathematics
Junior High
2根號3前的4怎麼來的
範例講解
2 根式四則運算
算式〔(√3-1-2]×[(3+1)-2]之
2. 原式=(4-2/3-2)(4+2/3-2)
=(2-2/3)(2+2/3)=2²-(2/3)2
=4-12=8
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