I'd like to eat out, but, ________, I should be trying to save money.
单词拼写:根据句意及首字母提示完成单词。
已知角α的顶点与原点重合,始边与x轴的正半轴重合,终边经过点P(﹣3,m),且sinα=﹣45,则tanα等于( )