यदि $y=x^x+x^7+7^x+7^7$ है,तो $\frac{dy}{dx}=$

  • A
    $x \cdot x^{x-1}+7 x^6+x 7^{x-1}$
  • B
    $x^x(1+\log_e x)+7 x^6+7^x(\log_e 7)$
  • C
    $x^x(1+\log_e x)+7 x^6+x \cdot 7^{x-1}$
  • D
    $x \cdot x^{x-1} \log_e x+7 x^6+7^x(\log_7 e)$

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