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Repede,am nevoie urgent!!!​

Repedeam Nevoie Urgent class=

Răspuns :

Răspuns:

Explicație pas cu pas:

a/b = 3/4

b/c = 4/7

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a/b = 3/4

a/3 = b/4 = k

a = 3k

b = 4k

a^2 + b^2 = 100

9k^2 + 16k^2 = 100

25k^2 = 100

k^2 = 100 : 25 = 4

k = 2

a = 3*2 = 6

b = 4*2 = 8

8/c = 4/7

c = 7*8/4 = 14

sau k = -2

a = -6

b = -8

c = -14