cosalfa=-16,39/23=-0,7126
Co zrobić gdy cosinus jest minusowy, wogole może być?
Cosinus jest ujemny dIa x z (Pi, 3/2Pi)
cos beta = 0,7126
beta = 44 st 30 '
cos ( 180 - beta) = - cos beta = - 0,7126
alfa = 180 st - 44st 30 ' = 135st 30'
lub
cos ( 180 st + beta) = - cos beta = - 0,7126
alfa = 180 st + 44 st 30' = 224 st 30'
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Cosinus jest ujemny dIa x z (Pi, 3/2Pi)
cos beta = 0,7126
beta = 44 st 30 '
cos ( 180 - beta) = - cos beta = - 0,7126
alfa = 180 st - 44st 30 ' = 135st 30'
lub
cos ( 180 st + beta) = - cos beta = - 0,7126
alfa = 180 st + 44 st 30' = 224 st 30'
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