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Mathematics, 25.10.2019 14:43 mamabates181981
If(a+3b+2c+6d)(a_3b_2c+6d)=(a_3b+2c _6d)(a+3b_2c_6d),prove that a: b=c: d.
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If(a+3b+2c+6d)(a_3b_2c+6d)=(a_3b+2c _6d)(a+3b_2c_6d),prove that a: b=c: d....
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