Mathematics
Senior High
Resolved
数学IIB
1-s=1-t
3/5s=2/3t になると解けませんか…?
353 AE: ED
1-1
BE:EC=:(1-めと
すると
05-(1-s)0A+sOD
D
E
A
B
=1-s)a+
OE-f0C+(1-10B=a+(1-17
=0.+0で、aとあは平行でないから
3
1-s=36=1-t
2
これを解いて S
3
よって OE-+
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