√(sinx²)应该怎么求导?
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√(sinx²)应该怎么求导?
√(sinx²)应该怎么求导?
√(sinx²)应该怎么求导?
=1/[2√(sinx²)]·(sinx²)'
=1/[2√(sinx²)]·cosx²·(x²)'
=1/[2√(sinx²)]·cosx²·2x
=xcosx²/√(sinx²)