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Oblicz c, jeśli √a+√b+√c =15, a = 36, b = 25 daje najj szybko pls​



Odpowiedź :

Bartek4877

Odpowiedź:

c = 16

Szczegółowe wyjaśnienie:

√a + √b + √c = 15

a = 36

b = 25

√36 + √25 + √c = 15

6 + 5 + √c = 15

11 + √c = 15

√c = 15 - 11

√c = 4. /²

(√c)² = 4²

c = 16

Spr:

L = √36 + √25 + √16 = 6 + 5 + 4 = 15

P = 15

L = P

Basetla

[tex]\sqrt{a} + \sqrt{b}+\sqrt{c} = 15, \ \ a = 36, \ b = 25\\\\\sqrt{36} + \sqrt{25} + \sqrt{c} = 15\\\\6+5 + \sqrt{c} = 15\\\\\sqrt{c} = 15-11\\\\\sqrt{c} = 4 \ \ |()^{2}\\\\c = 16[/tex]

[tex]Spr.\\\\L = \sqrt{36} + \sqrt{25}+\sqrt{16} = 6+5+4 = 15 = P[/tex]

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