化简 2/3X*(根号9X-X^2)*(根号1/X立方)+(6X*根号X/4)
问题描述:
化简 2/3X*(根号9X-X^2)*(根号1/X立方)+(6X*根号X/4)
答
根号下大于等于0
9x-x²>=0
x²-9x