Algebra Practice Question and Answer

Q:

यदि $$ {a^{x}={(x+y+z)^{y}}}, a^{y}=(x+y+z)^{z}  और  \ a^{z}=(x+y+z)^{x}$$ है तो  (x +y +z)  का मान है

717 0

  • 1
    0
    Correct
    Wrong
  • 2
    $$ {a^{3}} $$
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    a
    Correct
    Wrong
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Answer : 4. "a"

Q:

यदि a2x+2=1, है, जहां a, 1 के अतिरिक्त एक धनात्मक वास्तविक संख्या है, तो x किसके बराबर है ? 

715 0

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

Q:

If $$ {x+{9\over x}=6}$$  then find the value of $$ {x^{2}+{1\over x^{3}}}$$

715 0

  • 1
    $$ {12{1\over 27}}$$
    Correct
    Wrong
  • 2
    $$ {9{1\over 27}}$$
    Correct
    Wrong
  • 3
    $$ {8{1\over 27}}$$
    Correct
    Wrong
  • 4
    $$ {10{1\over 27}}$$
    Correct
    Wrong
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Answer : 2. "$$ {9{1\over 27}}$$"

Q:

यदि x एक वास्तविक संख्या है, तो (x2-x-1)  का न्यूनतम मान क्या होगा ?

694 0

  • 1
    1
    Correct
    Wrong
  • 2
    $$-{5\over 4}$$
    Correct
    Wrong
  • 3
    $$3\over 4 $$
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
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Answer : 2. " $$-{5\over 4}$$"

Q:

यदि a=25, b=15 , c=-10  हो तो $$ {a^{3}+b^{3}+c^{3}-3abc\over {(a-b)^{2}+(b-c)^{2} +(c-a)^{2}}}$$  का मान ज्ञात करों?

689 0

  • 1
    30
    Correct
    Wrong
  • 2
    -15
    Correct
    Wrong
  • 3
    -30
    Correct
    Wrong
  • 4
    15
    Correct
    Wrong
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Answer : 4. "15"

Q:

$$ {x^{8}+4\over{x^{4}+2x^{2}+2}}$$ बराबर है—

683 0

  • 1
    $$ {x^{4}+2x^{2}-2}$$
    Correct
    Wrong
  • 2
    $$ {x^{4}-2x^{2}+2}$$
    Correct
    Wrong
  • 3
    $$ {x^{4}-2x^{2}-2}$$
    Correct
    Wrong
  • 4
    Can’t be simplified
    Correct
    Wrong
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Answer : 2. "$$ {x^{4}-2x^{2}+2}$$"

Q:

यदि x = a - b, y = b - c, z = c - a, है, तो बीजगणितीय व्यंजक x3 +y3 + z3 -3xyz का आंकिक मान ज्ञात करें । 

681 0

  • 1
    4 (a+b+c)
    Correct
    Wrong
  • 2
    3 abc
    Correct
    Wrong
  • 3
    a + b + c
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
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Answer : 4. "0"

Q:

यदि $$ {x^{4}+x^{2}y^{2}+y^{4}={21\over256}}$$ और $$ {x^{2}+xy+y^{2}={3\over16}}$$ है तो तब $$ {2(x^{2}+y^{2})}=?$$ होगा।

670 0

  • 1
    $$ {3\over 8}$$
    Correct
    Wrong
  • 2
    $$ {5\over 8}$$
    Correct
    Wrong
  • 3
    $$ {3\over 4}$$
    Correct
    Wrong
  • 4
    $$ {5\over 16 }$$
    Correct
    Wrong
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Answer : 2. "$$ {5\over 8}$$"

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