Equation Questions Practice Question and Answer

Q:

यदि $$  \left( x^2+{1\over x^2} \right)- \left( x - {1\over 4} \right)- 7 =0 $$ है तो, x का मान ज्ञात करें 

922 0

  • 1
    1, 2
    Correct
    Wrong
  • 2
    $$ 2, -{1\over 2} $$
    Correct
    Wrong
  • 3
    0, 1
    Correct
    Wrong
  • 4
    $$ {1\over 2} , 1 $$
    Correct
    Wrong
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Answer : 2. "$$ 2, -{1\over 2} $$"

Q:

यदि समीकरण Ax2+BX+C = 0 के मूलों का अंतर 4 है, तो निम्नलिखित में से कौन-सा सत्य है ? 

1655 0

  • 1
    $$B^2 - 16A^2 = 4AC + 4B^2 $$
    Correct
    Wrong
  • 2
    $$B^2 - 10A^2 = 4AC + 6A^2$$
    Correct
    Wrong
  • 3
    $$B^2 - 8A^2 = 4AC + 10A^2 $$
    Correct
    Wrong
  • 4
    $$B^2 - 16A^2 = 4A^C + 8B^2$$
    Correct
    Wrong
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Answer : 2. "$$B^2 - 10A^2 = 4AC + 6A^2$$"

Q:

यदि समीकरण Ax2+Bx+C = 0 का एक मूल दूसरे से ढाई गुणा है, तो निम्नलिखित में से कौन सा सत्य है ? 

977 0

  • 1
    $$7B^2= 3 CA $$
    Correct
    Wrong
  • 2
    $$7B^2 = 4 CA$$
    Correct
    Wrong
  • 3
    $$7B^2 = 36 CA $$
    Correct
    Wrong
  • 4
    $$10B^2 = 49 CA $$
    Correct
    Wrong
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Answer : 4. "$$10B^2 = 49 CA $$"

Q:

यदि α तथा β  समीकरण x2 - 2x + 4 - 0, के मूल है तो वह समीकरण क्या है जिसके मूल α32 तथा β32 हैं ? 

1941 0

  • 1
    $$x^2 - 4x + 8 = 0 $$
    Correct
    Wrong
  • 2
    $$x^2 - 32x + 4 = 0 $$
    Correct
    Wrong
  • 3
    $$x^2 - 2x + 4 = 0 $$
    Correct
    Wrong
  • 4
    $$x^2 - 16x + 4 = 0 $$
    Correct
    Wrong
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Answer : 3. "$$x^2 - 2x + 4 = 0 $$"

Q:

समीकरण log10(x2-6x+45) =2? के मूल क्या   है

1397 0

  • 1
    9, - 5
    Correct
    Wrong
  • 2
    -9, 5
    Correct
    Wrong
  • 3
    11, -5
    Correct
    Wrong
  • 4
    -11, 5
    Correct
    Wrong
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Answer : 3. "11, -5"

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