write the expression sin 29° in terms of cosine. sin 29° = cos □ °
write the expression sin 29° in terms of cosine. sin 29° = cos □ °
Answer
Explanation:
Step1: Usar identidad trigonométrica
Sabemos que $\sin\alpha=\cos(90^{\circ}-\alpha)$.
Step2: Sustituir el valor de $\alpha$
Dado $\alpha = 29^{\circ}$, entonces $\sin29^{\circ}=\cos(90^{\circ}- 29^{\circ})$.
Step3: Calcular el valor
$90^{\circ}-29^{\circ}=61^{\circ}$.
Answer:
$61$