Question

if a+b+c=9 and ab+bc+ca =26,
find a²+b²+c²​

Answer 1

Answer:

29

Step-by-step explanation:

Given :

a + b + c = 9,

ab + bc + ca =26

To find :

a²+b²+c²​

Formula :

$\mathrm {(a + b + c)^2 = a^{2} +b^2+c^2 + 2(ab+bc+ca)}$

Solution :

So, according to the given formula,

Substituting the values, we get,

9² = a²+b²+c²​ + 2(26)

⇒ a²+b²+c²​ = 81 - 52

⇒ a²+b²+c² = 29

Hope it helps

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Answer 2

Answer:

Sorry I Can't Help u

Extremely Sorry