Question

Uzasadnij, że:

a)

b)

Answer 1

 

a)

√8 = √4*2 = 2√2

√18 = √9*2 = 3√2

√50 = √25*2 = 5√2

 

√8 + √18 = √50

2√2 + 3√2 = 5√2 ckd

 

b)

∛250 = ∛125*2 = 5∛2

∛128 = ∛64*2 = 4∛2

 

∛250 - ∛2 = ∛128

5∛2 - ∛2 = 4∛2 ckd

 

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Litterarum radices amarae sunt, fructus iucundiores

 

Pozdrawiam :)

 

Answer 2

a)

b)