Math, asked by sahupratap1987, 8 months ago

(a+b)2+(a-b)2=2(a2+b2)

Answers

Answered by mohammadmohibjamal

12

Answer:

(a+b)² = a² + b² + 2ab

(a-b)² = a² + b² - 2ab

(a+b)²+(a-b)²= (a² + b² + 2ab) + (a² + b² - 2ab)

⇒a² + b² + 2ab + a² + b² - 2ab

⇒2a² + 2b²

⇒(a+b)²+(a-b)² = 2(a²+b²)

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