Algebra Practice Question and Answer

Q:

If a + b + c = 0, then a3+b3+c3 is equal to 

2358 0

  • 1
    a + b + c
    Correct
    Wrong
  • 2
    abc
    Correct
    Wrong
  • 3
    2abc
    Correct
    Wrong
  • 4
    3abc
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "3abc"

Q:

If a2x+2=1, where a is a positive real number other than 1, then x is equal to 

1008 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:

Simplification 

1784 0

  • 1
    3/2
    Correct
    Wrong
  • 2
    5/2
    Correct
    Wrong
  • 3
    7/2
    Correct
    Wrong
  • 4
    11/2
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "7/2"

Q:

If then the value of


1368 0

  • 1
    -1
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    2
    Correct
    Wrong
  • 4
    41
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "1"

Q:

If average of two x and $$1\over x$$ (where x ≠ 0) is A, what will be the average of x3 and $$1\over {x^3}$$?

1316 0

  • 1
    $$4A^3-2A$$
    Correct
    Wrong
  • 2
    $$4A^3-3A$$
    Correct
    Wrong
  • 3
    $$4A^3-4A$$
    Correct
    Wrong
  • 4
    $$4A^2-2A$$
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "$$4A^3-3A$$ "

Q:

If $$ x={\sqrt3\over{2}}$$ then the value of $$ \sqrt{1+x}-\sqrt{1-x}$$ will be

1255 0

  • 1
    1
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    $$ \sqrt{3}$$
    Correct
    Wrong
  • 4
    $$ \sqrt{2}$$
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "1"

Q:

If a = 2.234, b = 3.121 and c = –5.355, then the value of $$ a^3 + b^3 + c^3 – 3abc$$ is

1640 0

  • 1
    -1
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    2
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "0"

Q:

If $$64^{x+1}={64\over 4^x}$$, then the value of x

1044 0

  • 1
    $$1\over 2$$
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "0"

      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