表达式6: "h" left parenthesis, "x" , right parenthesis equals StartFraction, "d" Over "d" "x" , EndFraction "f" left parenthesis, "x" , right parenthesishx=ddxfx
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2). h ( B₁ ) = 0
对学生隐藏该文件夹。
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表达式10: "k" left parenthesis, "x" , right parenthesis equals 3 halves "x" squared minus 2kx=32x2−2