Algebra Practice Question and Answer

Q:

यदि P= 22 + 62 + 102 +142 +……..942तथा  Q=12 + 52 + 92 +……..812 हैं तो P- Q का मान क्या है?

2473 0

  • 1
    24645
    Correct
    Wrong
  • 2
    31515
    Correct
    Wrong
  • 3
    29317
    Correct
    Wrong
  • 4
    26075
    Correct
    Wrong
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Answer : 4. "26075"

Q:

सरलीकरण किजिए

1305 0

  • 1
    3/2
    Correct
    Wrong
  • 2
    5/2
    Correct
    Wrong
  • 3
    7/2
    Correct
    Wrong
  • 4
    11/2
    Correct
    Wrong
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Answer : 3. "7/2"

Q:


938 0

  • 1
    -1
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    2
    Correct
    Wrong
  • 4
    41
    Correct
    Wrong
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Answer : 2. "1"

Q:

यदि दो संख्या x और $$1\over x$$ (जहाँ x ≠ 0) का औसत A है तो x3 और $$1\over {x^3}$$ तो का औसत क्या होगा ?

921 0

  • 1
    $$4A^3-2A$$
    Correct
    Wrong
  • 2
    $$4A^3-3A$$
    Correct
    Wrong
  • 3
    $$4A^3-4A$$
    Correct
    Wrong
  • 4
    $$4A^2-2A$$
    Correct
    Wrong
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Answer : 2. "$$4A^3-3A$$ "

Q:

यदि $$ x={\sqrt3\over{2}}$$ है, तो $$ \sqrt{1+x}-\sqrt{1-x}$$  का मान ज्ञात करें।

908 0

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

Q:

यदि a = 2.234, b = 3.121  और c = –5.355, है तो $$ a^3 + b^3 + c^3 – 3abc$$ का मान होगा।

1041 0

  • 1
    -1
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    2
    Correct
    Wrong
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Answer : 2. "0"

Q:

यदि $$64^{x+1}={64\over 4^x}$$ है, तो x का मान ज्ञात करे 

725 0

  • 1
    $$1\over 2$$
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
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Answer : 4. "0"

Q:

यदि $$x+{1\over x}=c{1\over c}$$  तो x का मान बताइए ?

524 0

  • 1
    c, 1\c
    Correct
    Wrong
  • 2
    c, c2
    Correct
    Wrong
  • 3
    c, 2c
    Correct
    Wrong
  • 4
    0, 1
    Correct
    Wrong
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Answer : 1. "c, 1\c "

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