Odpowiedź:
1.
√81 = 9
∛-64 = -4
2.
√0,16 = 0,4
√(1 11/25) = √36/25 = 6/5 = 1 1/5
3,
√3 * √5 * √15 = √15 &* √15 = 15
∛135/∛5 = ∛27 = 3
4.
√45 = √(9*5) = 3√5
∛48 = ∛(6*8) = 2∛6
5.
5√2 = √(25*2) = √50
3∛3 = ∛(27*3) = ∛81
6.
4/√2 = 4/√2 * √2/√2 = 4√2 : 2 = 2√2
6/(5√3) = 6/(5√3) * √3/√3 = 6/5 * √3 : 3 = 2/5 * √3
7.
P = ab
O = 2(a + b)
a = 3√2cm
b = √2cm
P = ab = 3√2cm * √2cm = 3cm * 2cm = 6cm²
O = 2(3√2cm + √2cm) = 2 * 4√2cm = 8√2cm
8.
√50 + √18 = √(2*25) + √(2*9) = 5√2 + 3√2 = 8√2
9.
5√3 = √(25*3) = √75
√74
5√3 > 5√74
Szczegółowe wyjaśnienie:
