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(5)y=e^[-sin²(1/x)]
y'=e^[-sin²(1/x)]×[-sin²(1/x)]'
=e^[-sin²(1/x)]×[-2sin(1/x)]×[cos(1/x)]×(1/x)'
=e^[-sin²(1/x)]×[-sin(2/x)]×(-1/x²)
=(1/x²)×sin(2/x)×e^[-sin²(1/x)]
(6)y=(sinx)^n*cosnx
y'=n[(sinx)^(n-1)]×(sinx)'*cosnx+(sinx)^n*(-sinnx)*n
=n[(sinx)^(n-1)]*cosx*cosnx-nsinnx*(sinx)^n
y'=e^[-sin²(1/x)]×[-sin²(1/x)]'
=e^[-sin²(1/x)]×[-2sin(1/x)]×[cos(1/x)]×(1/x)'
=e^[-sin²(1/x)]×[-sin(2/x)]×(-1/x²)
=(1/x²)×sin(2/x)×e^[-sin²(1/x)]
(6)y=(sinx)^n*cosnx
y'=n[(sinx)^(n-1)]×(sinx)'*cosnx+(sinx)^n*(-sinnx)*n
=n[(sinx)^(n-1)]*cosx*cosnx-nsinnx*(sinx)^n
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