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Ovi korisnici su zahvalili autoru
mala_mu za post (ukupno 2):
Daniel,
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od mala_mu » Subota, 01. Jul 2017, 19:27
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Hint:
Napiši [inlmath]\cos108^\circ=-\sin18^\circ[/inlmath], i pomnoži izraz sa [inlmath]1=\frac{2\cos18^\circ}{2\cos18^\circ}[/inlmath]. Zatim [inlmath]\sin54^\circ=\cos36^\circ[/inlmath], i imenilac napiši u obliku [inlmath]\cos18^\circ=\cos(90^\circ-72^\circ)=\sin72^\circ[/inlmath].
Sorry I'm late a black cat blocked my path so I had to take a different way then a dragon came down and blocked my path then I saw an old lady having trouble crossing the street so I helped her then a cat was stuck in a tree and the owners asked me to help then I got lost on the road of life