Algebra Question with answer Practice Question and Answer

Q:

यदि $$ {{x+1}\over4x}={5\over 2}$$, तो $$ 64x^6+1\over 8x^3  $$ का मान क्या होगा ?

1118 0

  • 1
    110
    Correct
    Wrong
  • 2
    115
    Correct
    Wrong
  • 3
    125
    Correct
    Wrong
  • 4
    120
    Correct
    Wrong
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Answer : 2. "115"

Q:

यदि x4+2x3+ax2+bx+9 एक पूर्ण वर्ग है जहाँ a तथा b धनात्मक वास्तविक संख्या है तो a और b का मान क्या होगा ? 

1109 0

  • 1
    a = 5, b = 6
    Correct
    Wrong
  • 2
    a = 6, b = 7
    Correct
    Wrong
  • 3
    a = 7, b = 7
    Correct
    Wrong
  • 4
    a = 7, b = 8
    Correct
    Wrong
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Answer : 2. "a = 6, b = 7"

Q:

यदिx  = 2  है तो का $$ x^3 + 27x^2 + 243x + 631$$ मान है।

1093 0

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

Q:

यदि $$ \sqrt {x^2+y^2}=25$$,  और y=2x,  है तो  x का मान है।

1090 0

  • 1
    5
    Correct
    Wrong
  • 2
    25
    Correct
    Wrong
  • 3
    $$ \sqrt {125}$$
    Correct
    Wrong
  • 4
    $$ \sqrt {5}$$
    Correct
    Wrong
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Answer : 3. "$$ \sqrt {125}$$"

Q:

यदि a-b=10 , ab=-21,  है तो a3-bका मान होगा।

1080 0

  • 1
    316
    Correct
    Wrong
  • 2
    370
    Correct
    Wrong
  • 3
    185
    Correct
    Wrong
  • 4
    158
    Correct
    Wrong
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Answer : 2. "370"

Q:

यदि $${3x+4y-2z+9=17},{7x+2y+11z+8=23}$$  तथा $$ {5x+9y+6z-4=18}$$ हैं, तो $$ {x+y+z-34}$$ का मान क्या है?

1067 0

  • 1
    -45
    Correct
    Wrong
  • 2
    -31
    Correct
    Wrong
  • 3
    -14
    Correct
    Wrong
  • 4
    -28
    Correct
    Wrong
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Answer : 2. "-31"

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-y=2, xy=24 है तो (x2+y2) का मान ज्ञात करें।

1064 0

  • 1
    52
    Correct
    Wrong
  • 2
    63
    Correct
    Wrong
  • 3
    36
    Correct
    Wrong
  • 4
    25
    Correct
    Wrong
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Answer : 1. "52"

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