Question

if a + b + c if a + b + c is equals to 8 and a b BC + CA equals to 17 find the value of a square + b square + c square​

Answer 1

Answer:

Step-by-steTo find: a² + b² + c² = ?

Solution:

We know that,

(a + b + c)² = a² + b² + c² + 2 (ab + bc + ca)

or, 12² = a² + b² + c² + 2 × 22

or, 144 = a² + b² + c² + 44

or, a² + b² + c² = 144 - 44

or, a² + b² + c² = 100

Answer: a² + b² + c² = 100p explanation: