Use as propriedades da multiplicação e da divisão de radicais e determine o valor de: a) √25/2 - √9/4 =
b) 2. √1/9 + √16/36 =
b) 2. √1/9 + √16/36 =
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√25/2 = √25/√2 = 5/√2 = 5/√2 × √2/√2 = 5√2/2
√9/4 = √9/√4 = 3/9 = 1/3
5√2/2 - 1/3 = 15√2/6 - 2/6 = (15√2 - 2)/6
b)
√1/9 = √1/√9 = 1/3
√16/36 =√16/√36 = 4/6
1/3 + 4/6= 2/6 + 4/6 = 6/6 = 1