Question

va rog dau coronița urgeeennntt​

Answer 1

Răspuns:

Explicație pas cu pas:

3/√8=√2*3/2√2

3√2/2√2=3√2/4

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6/√12=6/2√3=6*√3/2√3*√3=6/√3/2*3=6*√3/ 6=√3

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-8/√20=-8/2√5=-8*√5/2*√5*√5=-8√5/2*5=-8√5/10=-4√5/5

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2/√24=2/2√6=2√6/2√6*√6=2√6/2*6=2√6/12=√6/6

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16/√24=16/2√6=16√6/2√6*√6=16√6/2*6=16√6/12=4√6/3

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4/√28=4/2√7=4√7/2√7*√7=4√7/2*7=4√7/14=2√7/7

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2a/ √a²*b=2a/a√b= 2a*√b / a√b*√b=2a√b/a*b²=a√b/b²