若a/b是有理数，定义新运算“*”a*b=2ab+1，例如：｛-3｝*4=2*4+1=23试计算：｛1｝3*｛-5｝｛2｝｛6*｛-7}

若a/b是有理数，定义新运算“*”a*b=2ab+1，例如：｛-3｝*4=2*4+1=23试计算：｛1｝3*｛-5｝｛2｝｛6*｛-7}｝*｛-2｝

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｛1｝
3*｛梁裂扒-5｝
=2*3*(-5)+1
=-30+1
=-29

｛2｝源肢
｛6*｛-7}｝橡昌*｛-2｝
=｛2*6*(-7)+1}*｛-2｝
=｛-84+1}*｛-2｝
=｛-83}*｛-2｝
=2*(-83)*(-2)+1
=332+1
=333

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