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  3. 9th Class
  4. Mathematics

9th Class Mathematics Sample Paper Mathematics Sample Paper-1

  • question_answer
    If \[A=(5\sqrt{2}+6\sqrt{3})(4\sqrt{2}-5\sqrt{3})\] & \[B=(7\sqrt{2}+5\sqrt{3})(8\sqrt{2}-5\sqrt{3})\] then find the value of A + B.

    A) \[4\sqrt{6}-13\]  

    B) \[7\sqrt{6}-13\]

    C) \[5\sqrt{6}-13\]  

    D) \[3\sqrt{6}-13\]

    E) None of these

    Correct Answer: A

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