Mathematics
Junior High
Resolved
「よって」からあとの式での🟨は🟩をすべて分配法則で計算するのですか?
2
点Pのx座標をtとすると,△APC=1×3xt=2t
3
2
OB=2, OR=tより, BR=RQ=t-2
1
ABRQ= x(t-2)x(+-2)
2
xt-2
よって、 12/21=123×(1-2)×(1-2)×3 t=1,4
t-2-2+
t>2より.t=4
2
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