问题
填空题
已知10m=5,10n=3,则102m+3n=______,10m10n=______.
答案
(1)∵10m=5,10n=3,
∴102m+3n=(10m)2?(10n)3
=52×33
=25×27
=675;
(2)∵10m=5,10n=3,
∴10m10n=5×3=15.
故答案为:675,15.
已知10m=5,10n=3,则102m+3n=______,10m10n=______.
(1)∵10m=5,10n=3,
∴102m+3n=(10m)2?(10n)3
=52×33
=25×27
=675;
(2)∵10m=5,10n=3,
∴10m10n=5×3=15.
故答案为:675,15.