Algebra Practice Question and Answer

Q:

यदि x + y + z=1, xy+yz+zx=-26 और x3 + y3+z3=151 है तो xyz का मान क्या होगा?

882 0

  • 1
    -18
    Correct
    Wrong
  • 2
    32
    Correct
    Wrong
  • 3
    24
    Correct
    Wrong
  • 4
    – 30
    Correct
    Wrong
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Answer : 3. "24"

Q:

यदि $$ {(x-5)^{2} +{(y-2)^{2}}+{(z-9)^{2}=0}}$$  है तो (x+y-z) का मान क्या होगा?

725 0

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

Q:

यदि $$ {t^{2}-4t+1=0}$$ तो $${t^{3}+{1\over {t^{3}}}}$$ का मान क्या होगा—

1176 0

  • 1
    44
    Correct
    Wrong
  • 2
    48
    Correct
    Wrong
  • 3
    52
    Correct
    Wrong
  • 4
    64
    Correct
    Wrong
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Answer : 3. "52"

Q:

यदि $$ {x+{1\over 16x}}=1 $$,  है तो $$ {64x^{3}+{1\over 64x^{3}}}$$  का मान होगा—

2059 0

  • 1
    40
    Correct
    Wrong
  • 2
    52
    Correct
    Wrong
  • 3
    64
    Correct
    Wrong
  • 4
    76
    Correct
    Wrong
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Answer : 2. "52"

Q:

यदि $$ {(x+{1 \over{x}})^{2}}=3$$,  है तो का $$  {x^{206}+x^{200}+x^{90}+x^{84}+x^{18}+x^{12}+x^{6}+1}$$ मान होगा।

1258 0

  • 1
    0
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    84
    Correct
    Wrong
  • 4
    206
    Correct
    Wrong
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Answer : 1. "0"

Q:

यदि $$ {x=2-2^{1\over 3}+2 ^{2\over 3}}$$ है तो $$ {x^{3}-6x^{2}+18x+18}$$ का मान होगा।

1066 0

  • 1
    22
    Correct
    Wrong
  • 2
    33
    Correct
    Wrong
  • 3
    40
    Correct
    Wrong
  • 4
    45
    Correct
    Wrong
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Answer : 3. "40"

Q:

यदि $$ {x^{2}+3{x}+1=0}$$ है तो $$ {x^{3}+{1\over {x^{3}}}}$$ का मान होगा।

910 0

  • 1
    -18
    Correct
    Wrong
  • 2
    18
    Correct
    Wrong
  • 3
    36
    Correct
    Wrong
  • 4
    -36
    Correct
    Wrong
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Answer : 1. "-18"

Q:

n का मान ज्ञात कीजिये जब $$ {n=\sqrt{n+ 2 \sqrt{n+2\sqrt{n+2\sqrt{3n}}}}}$$

890 0

  • 1
    1
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    9
    Correct
    Wrong
  • 4
    12
    Correct
    Wrong
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Answer : 2. "3"

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