y=arcsin2(cos3x) 求y'
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发布时间:2024-10-24 09:36
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时间:2024-11-09 21:12
y=[arcsin(cos3x)]^2
dy/dx
= 2[arcsin(cos3x)] d/dx [arcsin(cos3x)]
= 2[arcsin(cos3x)] [ 1/√( 1-(cos3x)^2 )] . d/dx (cos3x)
= 2[arcsin(cos3x)].(1/sin3x) . d/dx (cos3x)
= 2[arcsin(cos3x)].(1/sin3x) . (-sin3x) d/dx (3x)
=-6[arcsin(cos3x)]