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Trigonometria para iniciantes

Quiz

Played 1

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Inicia o teu estudo trigonométrico com este quizz.

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Portugal

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Trigonometria para iniciantes
 

Trigonometria para iniciantesOnline version

Inicia o teu estudo trigonométrico com este quizz.

by Bernardo
1

Qual é a fórmula fundamental da trigonometria?

2

Em que quadrante se encontra pi/6?

3

Qual o valor de tg(45º)?

4

Quanto graus corresponde pi/4 rad?

Explicação

A fórmula fundamental da trigonometria diz nos que a soma de seno e cosseno ao quadrado é 1.

O primeiro quadrante encontra-se delimitado por ]0,pi/2[, o segundo quadrante é ]pi/2, pi[, o terceiro quadrante é ]pi, (3*pi)/2[, o quarto quadrante é ](3*pi)/2, 0[.

A tangente de 45 é 1, pois a tangente de 45 é dada pela quociente entre seno(45º) e cos(45º), onde ambos são sqrt(2)/2.

Usando a regra de três simples, descobre o valor pretendido sabendo que pi rad corresponde a 180º.

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