Answered

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Determine o valor das seguintes expressões.

a) (17º-17'-17") : 4
b) (18º: 8 + 23º: 4 - 8º) . 29

Sagot :

AL2006

a). (17º-17'-17")  =  17º + 17'/60 + 17"/3600  =  17.288055...º

17.288055...º / 4 = 4.322...º =  4º - 19' - 19.25"  <== a resposta

b) (18º: 8 + 23º: 4 - 8º)

18º / 8  =  2.25º
23º / 4  =   5.75º

(2.25º + 5.75º - 8º) = 0  <== a resposta


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