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If (b + c), (c + a), (a + b) are in A.P. then1). b = a + c2). \(a = \frac{{b + c}}{2}\)3). \(c = \frac{{a + b}}{2}\)4). \(b = \frac{{a + c}}{2}\) |
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Answer» The GIVEN EXPRESSION, (b + c), (c + a), (a + b) are in A.P Then, ⇒ (c + a) = [(b + c) + (a + b)]/2 ⇒ c + a = 2b ∴ b = (a + c)/2 |
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