VĂ ROG AJUTOR URGENT DAU COROANĂ VĂ IMPLOR Cercul cel mai mare are raza a unitati (imagine atasată). Cercurile cele mai mici au raza de c unitati. Celelalte doua (medii) au raza de b unitati. Stiind ca toate cercurile sunt tangente, demonstrati ca a : b : c = 6 : 3 : 2.
Stiu ca trebuie sa folosesc Pitagora si sa arat ca a=3c. Dar in rest m-am blocat si e super importanta problema. Va multumesc FOARTE mult. Puteti efectiv doar sa mi dati hints pentru ca de abia mi-am facut contul si am doar 25 de puncte. V-as fi dat 100.

Value of m must be less than  

Step-by-step explanation:

Given: Equation of curve,

To find: 2 x-intercepts

X-intercept of curve means zeroes of quadratic equation we get by putting y = 0.

So, The quadratic equation we get,

Now, to have 2 x-intercept the discriminant of the quadratic equation should be greater than 0.

Therefore, By using this condition we find value of m for which given equation has 2 x-intercept.

Discriminant, D =

where, a = coefficient of

            b = coefficient of

            c = constant term

⇒ a = 3, b = 7 & c = m

Putting these value and applying the condition of discriminant we get,

    D > 0

⇒  

⇒  

     Squaring both sides,

⇒  

⇒  

⇒  

Therefore, Value of m must be less than