計算:(1)(√48-4√1/8)-(3√1/3-2√0.5)

題目:

計算:(1)(√48-4√1/8)-(3√1/3-2√0.5)
(2)√ab+2a√b/a+3b√a/b-5ab√1/ab(a>0,b>0)


解答:

計算:
(1)(√48-4√1/8)-(3√1/3-2√0.5)
=(4√3-√2)-(√3-√2)
=4√3-√2-√3+√2
=3√3
(2)√ab-2a√b/a+3b√a/b-5ab√1/ab
=√ab-2√ab+3√ab-5√ab
=-3√a

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