Mathematics
Senior High
この解き方は間違っていたのですが、なぜ間違っていたのか分かりません。
(9) (7) α <0 Ae=√-0³
axFa
la-21+la+11
=a-2 +a+ 1 (iii) a < -
10-21 + 12111.
²2a-1
=-(a-2)-(a+1)
= 2a + 1
(1-kax2
Ta-21 +1a +1|=-(a-x)+a+1
3.
(1)√(√2-√3)² + √(√13-21²
= √√√3+2 +√√4-3
ST+T
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