化简:(sin²αtanα+cos²α/tanα+2sinαcosα)sinαcosα
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 19:34:48
![化简:(sin²αtanα+cos²α/tanα+2sinαcosα)sinαcosα](/uploads/image/z/657588-12-8.jpg?t=%E5%8C%96%E7%AE%80%EF%BC%9A%28sin%26%23178%3B%CE%B1tan%CE%B1%2Bcos%26%23178%3B%CE%B1%2Ftan%CE%B1%2B2sin%CE%B1cos%CE%B1%29sin%CE%B1cos%CE%B1)
化简:(sin²αtanα+cos²α/tanα+2sinαcosα)sinαcosα
化简:(sin²αtanα+cos²α/tanα+2sinαcosα)sinαcosα
化简:(sin²αtanα+cos²α/tanα+2sinαcosα)sinαcosα
(sin²αtanα+cos²α/tanα+2sinαcosα)sinαcosα
=(sinα)^4+(cosα)^4+2sin²αcos²α
=(sin²α+cos²α)²
=1²
=1