①34°25′×3+35°42′ ②（180°-91°32′24″）÷3 具体过程,谢谢~~
问题描述：
①34°25′×3+35°42′ ②（180°-91°32′24″）÷3 具体过程,谢谢~~
答
34°25'×3+35°42'
=102°75'+35°42'
=137°117'
=138°57'
（180°-91°32'24'')÷3
=88°27'36''÷3
=87°87'36''÷3
=29°29'12'' 第一位楼主答错了
答
34°25'×3+35°42'
=102°75'+35°42'
=137°117'
=138°57'
（180°-91°32'24'')÷3
=88°27'36''÷3
=87°87'36''÷3
=29°29'12
答
34°25′×3+35°42′
=102°75′+35°42′
=137°117′
=138°57′
（180°-91°32′24″）÷3
=（180°59‘60’‘-91°32′24″）÷3
=89°27′36″÷3
=87°147′36″÷3
=29°49′12″