计算(1)3倍根号12-3倍根号1/3-1/2倍根号48-根号27 (2)(根号32+根号0.75)(2倍根号1/3+根号1/8)
问题描述:
计算(1)3倍根号12-3倍根号1/3-1/2倍根号48-根号27 (2)(根号32+根号0.75)(2倍根号1/3+根号1/8)
答
(1)3倍根号12-3倍根号1/3-1/2倍根号48-根号27
=6√3-√3-2√3-3√3
=0
(2)(根号32+根号0.75)(2倍根号1/3+根号1/8)
=(4√2+√3/2)(2√3/3+√2/4)
=8√6/3+2+1+√6/8
=67√6/24+3