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.
答
∵10a=5,10b=6,
∴102a+3b
=102a×103b
=(10a)2×(10b)3
=52×63
=25×216
=5400.