Naoki must make good on a promise, but things don't go as planned.
Sin(theta) = the negative square root of 16/25.
Sin(theta) = die negative Quadratwurzel
von 16/25.
Sin(theta) = menos la raíz de 16/25.
Sin(theta) = menos la raíz de 16/25.
Sinus θ est égal
à moins racine de 16 sur 25.
O seno de theta é igual a menos
 raiz quadrada de 16 sobre 25.