Y=cosX^2 求dy

Y=cosX^2 求dy 要步骤的 谢谢
2025-06-27 19:50:10
推荐回答(2个)
回答1:

dy=dcos(x²)
=-sin(x²)dx²
=-sin(x²)*2xdx
=-2xsin(x²)dx

回答2:

dy=dcos(x^2)
dy=2x[-sin(x^2)]dx
dy=-2xsin(x^2)dx