补角=180°-50°17′42〃=179°59'60''-50°17′42〃=129°42'18''
余角=90°-50°17′42〃=89°59'60''-50°17′42〃=39°42'18''
余角=90°-50°17′42〃=89°59'60''-50°17′42〃=39°42'18''
补角为 129°42'18"
余角为 39°42'18"
129*42'18" 39*42'18"
补角为129°42′18〃，余角为39°42′12〃
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