defence exam DGAFMS Group C 2025 Mock Test Series Quantitative Aptitude Algebra Identities

જો a + b + c = 2s, તો [(s - a)² + (s - b)² + (s - c)² + s²] = ?

1
(s² - a² - b² - c²)
2
(s² + a² + b² + c²)
3
(a² + b² + c²)
4
(4s² - a² - b² - c²)
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