If in an AP, t = log,, a, t+1 = log...
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If in an AP, t = log,, a, t+1 = log,, band t2n+1 = logo c then a, b, care in (A) AP (B) GP (C) HP (D) none of these

JEE/Engineering Exams
Maths
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( t_{1}, quad t_{n}+1, quad t_{2} n+1 ) are in ( 2 operatorname{tn} t 1=t 4+t_{2} n+1 ) ( 2 cdot log _{10}^{b}=log _{10}^{a}+log _{10} c ) ( log _{10} b^{2}=log _{10}^{a c} ) ( Rightarrow quad b^{2}=a c ) ( a_{1} b, c ) are in GP
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