问题
填空题
已知cos55°=0.5736,那么sin35°的值为______.
答案
∵sin35°=cos(90-35°)=cos55°,
而cos55°=0.5736,
∴sin35°=0.5736.
故答案为0.5736.
已知cos55°=0.5736,那么sin35°的值为______.
∵sin35°=cos(90-35°)=cos55°,
而cos55°=0.5736,
∴sin35°=0.5736.
故答案为0.5736.