wykaz ze rownosc jest tozsamoscia
sin²α
---------------- =1+cosα
1-cosα
1-cos²α
---------------------- =1+cosα
(1+cosα)(1-cosα)
---------------------------- =1+cosα
1+cosα=1+cosα
L=P
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sin²α
---------------- =1+cosα
1-cosα
1-cos²α
---------------------- =1+cosα
1-cosα
(1+cosα)(1-cosα)
---------------------------- =1+cosα
1-cosα
1+cosα=1+cosα
L=P