Ответы на вопрос:
a)√36/√900 = 6/30 = 1/5
б)1/3√0.09 + 1 = 1/3•0.3 + 1 = 1/3•3/10 + 1 = 1/10 + 1 = 1.1
в)1/7√28² =1/7 • 28 = 4
г)√(0.5²-0.3²) = √(0.25-0.09) = √0.16 = 0.4
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