Пошаговое объяснение:
а)
√(81 * 169) = √81 * √169 = 9 * 13 = 117
√2 * √162 = √(2 * 162) = √324 = 18
b)
√(900 * 5,29) = √900 * √5,29 = 30 * 2,3 = 69
√2,8 * √0,7 = √(2,8 * 0,7) = √1,96 = 1,4
с)
√(3 6/25 * 361/81) = √3 6/25 * √361/81 = √81/25 * √361/81 = 9/5 * 19/9 = 19/5 = 3 4/5
√1 7/11 * √5 1/2 = √(1 7/11 * 5 1/2) =
√(18/11 * 11/2) = √18/2 = √9 = 3
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Пошаговое объяснение:
а)
√(81 * 169) = √81 * √169 = 9 * 13 = 117
√2 * √162 = √(2 * 162) = √324 = 18
b)
√(900 * 5,29) = √900 * √5,29 = 30 * 2,3 = 69
√2,8 * √0,7 = √(2,8 * 0,7) = √1,96 = 1,4
с)
√(3 6/25 * 361/81) = √3 6/25 * √361/81 = √81/25 * √361/81 = 9/5 * 19/9 = 19/5 = 3 4/5
√1 7/11 * √5 1/2 = √(1 7/11 * 5 1/2) =
√(18/11 * 11/2) = √18/2 = √9 = 3