Matemáticas, pregunta formulada por namun4318, hace 4 meses

Si, a/2=b/5=c/3 y a^2 + b^2 + c^2 =152​

Respuestas a la pregunta

Contestado por YHR5
1

☆ RESOLUCIÓN:

 \frac{a}{2}  =  \frac{b}{5}  =  \frac{c}{3}  = k

→ \boxed{a = 2k}

→ \boxed{b = 5k}

→ \boxed{c = 3k}

⇒ {a}^{2}  +  {b}^{2}  +  {c}^{2}  = 152 \\ (2k) {}^{2}  + (5k) {}^{2}  + (3k) {}^{2}  = 152 \\ 4 {k}^{2}  + 25 {k}^{2}  + 9 {k}^{2}  = 152 \\ 38 {k}^{2}  = 152 \\  {k}^{2}  =  \frac{152}{38}  \\  {k}^{2}  = 4 \\ k =  \sqrt{4}  \\  \boxed{k = 2}

→ a = 2k = 2 \times 2 = \boxed{4}

→ b = 5k = 5 \times 2 = \boxed{10}

→c = 3k = 3 \times 2 =  \boxed{6}

☆ RESPUESTA:

 \boxed{a = 4}

 \boxed{b = 10}

 \boxed{c = 6}

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