Mathematics
Senior High
Resolved
分母にマイナスが来た場合、分子の符号は変わらないのですか?
8
2
(2)
3-√5 2+√5
8(3+√5)
(3-√√5)(3+√5)
24+8/5 4-2√5
2 (2-√5)
(2+√5)(2-5)
24+8√5 4-2/5
=
32-5)² 22-(√√5) 2 9-5
4-5
=
24+8/5 4-2/5
4 UF1
=6+2√5+4-2√5=10
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