UPSC NDA II 2014 Mathematics Paper
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For the next three (03) items that follow:
Letf ( x ) = a x 2 + b x + c such that f ( 1 ) = f ( − 1 ) and a,b,c are in Arithmetic Progression
Let
[NDA II 2014]
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Question : 88 of 120
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What is the value of b ?
[NDA II 2014]
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