Mathematics
Senior High
なぜ-2(√3−1) になるのですか？
解いたら(2+√3)になりました汗
(V3+1) +(V2)?-22
2.(V3 +1).V2
(4+2、3)+2-4
2、2(V3 +1)
2(V3 +1)
2、2(V3 +1)
cos B =
1
V2
CD
よって
B=45°
DADD0
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