过抛物线y2=4x的焦点,倾斜角为45°的直线方程为_______。

作者: tihaiku 人气: - 评论: 0
问题 过抛物线y2=4x的焦点,倾斜角为45°的直线方程为_______。
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解析 【答案】x-y-1=0。解析:抛物线y2=4x的焦点为(1,0),倾斜角为45°的直线斜率为1,则直线方程为x-y-1=0。
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  • 消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
  • 文件: /twcms/kongphp/cache/cache_redis.class.php
  • 位置: 第 85 行
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