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2014-04-18T14:06:45+03:00
Folosim relatia sin^2 x + cos^2 x =1 => cos^2 x = 16/25 => cos x =  4/5.
Tg x = sin x/ cos x = 3/4.

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  • Utilizator Brainly
2014-04-18T16:19:33+03:00
Folosim relatia sin^2 x + cos^2 x =1 => cos^2 x = 16/25 => cos x =  4/5.
Tg x = sin x/ cos x = 3/4. 
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