负根号负a加根号负的a的立方减a根号负a分之1
问题描述:
负根号负a加根号负的a的立方减a根号负a分之1
答
﹣√﹙﹣a﹚+√﹙﹣a﹚³-a√﹙﹣1/a﹚
=﹣√﹙﹣a﹚-a√﹙﹣a﹚+√﹙﹣a﹚
=﹣a√﹙﹣a﹚.