" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
a)
P = 49¹/³ * 49¹/⁶ = 49¹/² = √49 = 7
c)
P = 6³/⁵ * 2²/⁵ * 3⁷/⁵ = 2¹ * 3² = 2*9 = 18
zad 12
a)
7 do (4-√3) * 7 do (√3-2) = 7 do (4-√3+√3-2) = 4² = 16
c)
3 do (√5-1) : 9 do (√5/2+1) = 3 do (√5-1) : 3 do (√5-2) = 3 do (√5-1-√5+2) = 3
e)
[4*0,5 do √3] do (2+√3) = 4 do (2+√3) * (1/2) do (2√3+3) = 2 do (4+ 2√3)*2 do (-2√3-3) = 2 do (4+2√3-2√3-3) = 2
zad 13
a)
0,5 do √5 * 2 do (√5+2√2) * 0,25 do √2 = 2 do -√5 * 2(√5+ 2√2) * 2 do -2√2 = 2 do (-√5+√5+2√2-2√2) = 2⁰ = 1
b)
(2 - √3) do √2 * (2 + √3) do √2 = [(2-√3)(2+√3)] do √2 = (4 - 3) do 2 = (-1)do √2 = 1
zad 14
a)
3 do x = 243
3 do x = 3⁵
x = 5
d)
5*5 do x = 626
5 do (1 + x) = 5⁴
1 + x = 4
x = 3
g)
4 do x = 2 do x
2 do 2x = 2 do x
2x = x
2x - x = 0
x = 0
zad 15
a)
9√3 = 3² * 3¹/² = 3⁵/² ---> (2)
27²/³ = ∛27² = 9 = 3² -----> (1)
3 do √3≈ 3 do potęgi 1,7 ----> (3)
9²'¹ = 3 do potęgi 4,2 ----> (4)