Mathematics
Senior High
Resolved
何故こうなるのですか、、、?
基本対称式はa+bと abである。
③ 2α'+ab+26° = 2(α°+6°)+ab
96
十- 4abe
= 2{(a+6)?-2ab} + ab -
= 2(a+b)°-3ab /?
4
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