
47°40‘37’‘×2+34°45’= ? 要详细过程! 急!!~
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47°40‘37’‘×2+34°45’
=94°80'74''+34°45'
=128°125'74''
=128°(2×60+5)'(60+14)''
=130°6'14''
=94°80'74''+34°45'
=128°125'74''
=128°(2×60+5)'(60+14)''
=130°6'14''
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