Question

11. If (a²+b²) OC ab then prove that?(a+b)oc (a-b).chapter is variation please ans guys​

Answer 1

Answer:

What is the meaning of OC there I don't understand?????

Step-by-step explanation:

Write the question properly

Answer 2

Answer:

a² + b² + c² = ab + bc + ca

✏️On multiplying both sides by ‘2’, it becomes

2 ( a² + b² + c² ) = 2 ( ab + bc + ca)

2a² + 2b² + 2c² = 2ab + 2bc + 2ca

a² + a² + b² + b² + c² + c² – 2ab – 2bc – 2ca = 0

a² + b² – 2ab + b² + c² – 2bc + c² + a² – 2ca = 0

(a² + b² – 2ab) + (b² + c² – 2bc) + (c² + a² – 2ca) = 0

(a – b)² + (b – c)² + (c – a)² = 0

=> Since the sum of square is zero then each term should be zero

⇒ (a –b)² = 0, (b – c)² = 0, (c – a)² = 0

⇒ (a –b) = 0, (b – c) = 0, (c – a) = 0

⇒ a = b, b = c, c = a

✏️∴ a = b = c.