Algebra Practice Question and Answer

Q:

यदि  $$4a-{4\over a}+3=0$$ तो $$ a^3-{1\over a^3}+3=?$$ का मान है

832 0

  • 1
    $$3\over 16$$
    Correct
    Wrong
  • 2
    $$7\over 16$$
    Correct
    Wrong
  • 3
    $$21\over 24$$
    Correct
    Wrong
  • 4
    $$21\over 16$$
    Correct
    Wrong
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Answer : 3. " $$21\over 24$$"

Q:

यदि $${{5x-7}\over 3}+2={{4x-3}\over 4}+4x$$, तो (8x+5) का मान है

832 0

  • 1
    9
    Correct
    Wrong
  • 2
    13
    Correct
    Wrong
  • 3
    6
    Correct
    Wrong
  • 4
    7
    Correct
    Wrong
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Answer : 3. "6"

Q:

यदि 27(x+y)3 – 8(x-y)3=(x+5y)(Ax2+By2+Cxy), तो (A+B-C) का मान क्या है?

831 0

  • 1
    18
    Correct
    Wrong
  • 2
    16
    Correct
    Wrong
  • 3
    13
    Correct
    Wrong
  • 4
    11
    Correct
    Wrong
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Answer : 2. "16"

Q:

यदि x = 19 और y = 18, तो $$ {{x^2}+{y^2}+{xy}}\over x^3-y3 $$ का मान है

823 0

  • 1
    1
    Correct
    Wrong
  • 2
    37
    Correct
    Wrong
  • 3
    324
    Correct
    Wrong
  • 4
    361
    Correct
    Wrong
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Answer : 1. "1 "

Q:

$$ {1\over {^3\sqrt{4}+{^3\sqrt{2}}}+1}=a^3\sqrt{4}+ b^3\sqrt{2}+c $$ और a, b, c परिमेय संख्याएँ हैं, तो a + b + c के बराबर है

823 0

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

Q:

दी गई प्रतिक्रियाओं में से, (a2 – b2 )3 + (b2 – c2) 3 + (c2 – a2) 3 का एक कारक है

821 0

  • 1
    (a + b) (a – b)
    Correct
    Wrong
  • 2
    (a + b) (a + b)
    Correct
    Wrong
  • 3
    (a – b) (a – b)
    Correct
    Wrong
  • 4
    (b – c) (b – c)
    Correct
    Wrong
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Answer : 1. "(a + b) (a – b) "

Q:

यदि a + b + c = 6, a3 + b3+c3-3abc=342, तो ab + bc + ca का मान क्या है?

810 0

  • 1
    5
    Correct
    Wrong
  • 2
    8
    Correct
    Wrong
  • 3
    -7
    Correct
    Wrong
  • 4
    -5
    Correct
    Wrong
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Answer : 3. "-7 "

Q:

यदि x = 2 तो x3 + 27x2 + 243x + 631 का मान है

808 0

  • 1
    1233
    Correct
    Wrong
  • 2
    1211
    Correct
    Wrong
  • 3
    1231
    Correct
    Wrong
  • 4
    1321
    Correct
    Wrong
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Answer : 1. "1233 "

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