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Grade: 11
        
If a ,A1 , A2, A3 ....A10, b are in AP and and  a, G1, G2, G3.... G10 b are in GP and H is the hm between a and b then A1 + A2 ....+A10/G1g10 + A2+A3....A9/G2G9 +.......A5A6/G5G6 is ....
 
 
23 days ago
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