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1. যদি x2+3xy+5y2=1 হয়, তাহলে dy/dx সমান হবে−

  • A. −2x+3y/3x+10y
  • B. −2x+3y/3x+10y
  • C. −2x+3y/3x+10y
  • D. −2x+3y/3x+10y

Answer: Option A

Explanation:

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