由导数的运算公式可得(cosxx)′=-xsinx-cosxx2=-xsinx+cosxx2
故答案为-sinx•x+cosxx2
The Spring Festival Gala(春节晚会) on CCTV has _______ many ordinary entertainers into well-known stars overnight. [ ]
A. created
B. transformed
C. made
D. produced
精加工处理
