a=2-√3;
原式=(a-1)²÷(a-1)-(a-1)²÷a(a-1)
=a-1-(a-1)/a
=(a-1)(1-1/a)
=(a-1)²/a
=(2-√3-1)²/(2-√3)
=(1+3-2√3)/(2-√3)
=2;
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,
a=2-√3;
原式=(a-1)²÷(a-1)-(a-1)²÷a(a-1)
=a-1-(a-1)/a
=(a-1)(1-1/a)
=(a-1)²/a
=(2-√3-1)²/(2-√3)
=(1+3-2√3)/(2-√3)
=2;
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,