1.13°29‘+78°37”-22°5’42“ 2.23°53‘*3+107°45’/5

爱家爱他爱生活2022-10-04 11:39:541条回答

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camelyu 共回答了23个问题 | 采纳率87%: 13°29′+78°37″-22°5′42″
=(13°+78°+29′+37″)-22°5′42″
=91°29′37″-22°5′42″
=91°28′97″-22°5′42″
=(91°-22°)+(28′-5′)+(97″-42″)
=69°+23′+55″
=69°23′55″
23°53′×3+107°45′/5
=(23°+53′)×3+(105°+120′+45′)×1/5
=(23°+53′)×3+(105°+165′)×1/5
=23°×3+53′×3+105°×1/5+165′×1/5
=69°+159′+21°+33′
=90°+192′
=90°+180′+12′
=93°12′; 1年前