题目2√6⼀(√2+√3+√5)

2024-12-27 08:38:20
推荐回答(1个)
回答1:

解:2√6/(√2+√3+√5)
=[2√6(√2+√3-√5)]/[(√2+√3+√5)(√2+√3-√5)]
=(4√3+6√2-2√30)/[(√2+√3)²-5]
=(4√3+6√2-2√30)/(2+3+2√6-5)
=(4√3+6√2-2√30)/(2√6)
=[(4√3+6√2-2√30)×√6]/(2√6×√6)
=(12√2+12√3-12√5)/12
=√2+√3-√5