已知10a=5,10b=6,求102a+3b的值.

问题描述:

已知10a=5,10b=6,求102a+3b的值.

∵10a=5,10b=6,
∴102a+3b
=102a×103b
=(10a2×(10b3
=52×63
=25×216
=5400.