问题
解答题
计算：48°39′+67°31′-21°17′×5
答案
48°39′+67°31′-21°17′×5
=48°39′+67°31′-106°25′
=116°10′-106°25′
=9°45′．
搜题请搜索小程序“爱下问搜题”
计算：48°39′+67°31′-21°17′×5
48°39′+67°31′-21°17′×5
=48°39′+67°31′-106°25′
=116°10′-106°25′
=9°45′．