Em um triângulo retângulo ABC, reto em Â, o senB= 12/13 e a tbB=12/5. Qual o valor do cosseno e da tangente
Em um triângulo retângulo ABC, reto em Â, o senB= 12/13 e a tbB=12/5. Qual o valor do cosseno e da tangente do ângulo C? A. cosC= 13/12 e tg C=12/5
B. cosC= 12/13 e tg
C=5/12 C. cosC= 13/15 e tg C=5/12
D. cosC= 5/12 e tg C=13/12
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