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Alpha 15 grad, cos 15 grad = ??

 13.02.2017
 #1
avatar+8459 
0

Alpha 15 grad, cos 15 grad = ??

 

\(cos 15°=0,965925826289\)

 

laugh  !

 13.02.2017
 #2
avatar+22881 
+5

Alpha 15 grad, cos 15 grad = ??

 

\(\begin{array}{|rcll|} \hline \cos(15^{\circ}) \\ &=& \tfrac14 \cdot (\sqrt{6}+\sqrt{2}) \\ &=& 0,96592582629 \\ \hline \end{array}\)

 

laugh

 14.02.2017

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