bantu pakai caranya mau dikerjain sekarang
perhatikan bahwa [tex] 124 \dfrac{1}{24} = 2977/24 [/tex], maka:
[tex] \begin{align} x(t) &= 5\sin 4πt \\ x\left(\dfrac{2977}{24}\right) &= 5\sin \cancel{4\:}π\left(\dfrac{2977}{\cancel{24}\:^6} \right) \\ x\left(\dfrac{2977}{24}\right) &= 5\sin\left(\frac{π}{6}\cdot \cancel{2977}\right) \\ x\left(\dfrac{2977}{24}\right) &= 5\sin \dfrac{π}{6} \\ x\left(\dfrac{2977}{24}\right) &= 5(0{,}5) = 2{,}5\text{ cm} \end{align} [/tex]
[answer.2.content]