if a+b+c=9 and ab+bc+ca =26,
find a²+b²+c²
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0
Answer:
29
Step-by-step explanation:
Given :
a + b + c = 9,
ab + bc + ca =26
To find :
a²+b²+c²
Formula :
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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