Algebra Question with answer Practice Question and Answer

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
  • Show AnswerHide Answer
  • Workspace

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
  • Show AnswerHide Answer
  • Workspace

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
  • Show AnswerHide Answer
  • Workspace

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
  • Show AnswerHide Answer
  • Workspace

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
  • Show AnswerHide Answer
  • Workspace

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
  • Show AnswerHide Answer
  • Workspace

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
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "$$ {5\over 8}$$"

Q:

यदि $$ {a={1+x\over 2-x}}$$, है, तो $$ {1\over {a+1}}+{2a+1\over{a^{2}-1}}$$ किसके बराबर होगा?

650 0

  • 1
    $$ {(1+x)(2+x)\over {2x-1}}$$
    Correct
    Wrong
  • 2
    $$ {(1-x)(2-x)\over {x-1}}$$
    Correct
    Wrong
  • 3
    $$ {(1+x)(2-x)\over {2x-1}}$$
    Correct
    Wrong
  • 4
    $$ {(1+x)(2-x)\over {2x+1}}$$
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "$$ {(1+x)(2-x)\over {2x-1}}$$"

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully