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Class 10 Mathematics Arithmetic Progressions (AP)Introduction to APs and common difference.Expert

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If (k+1, 2k+4, 4k-2) are in an arithmetic progression, what will be the value of (k)?

Answer and explanation

Correct answer: (6)

From (2(2k+4)=(k+1)+(4k-2)), (4k+8=5k-1), so (k=9). Identify the middle term correctly while forming the equation.

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Ap Find Parameter Algebraic Terms Expert Introduction To Aps And Common Difference.Introduction To Aps And Common Difference Arithmetic Progressions (Ap)Arithmetic Progressions Ap

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