Algebra Question with answer Practice Question and Answer

Q:

If a2=b+c, b2=c+a  and c2=a+b then the  value of $$ {1\over{1+a}}+{1\over{1+b}}+{1\over{1+c}}$$ is

1122 1

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

Q:

If 0.13 x p2 = 13, then p is equal to

1824 0

  • 1
    10
    Correct
    Wrong
  • 2
    0.01
    Correct
    Wrong
  • 3
    0.1
    Correct
    Wrong
  • 4
    100
    Correct
    Wrong
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Answer : 1. "10 "

Q:

If $$x=(\sqrt2+1)^{1\over3} $$, the value of $$(x^3-{1\over {x^3}}) $$ is

780 0

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

Q:

What is the area (in sq. cm) of a rhombus if the lengths of the diagonals are 12 cm and 14 cm ?

1414 0

  • 1
    42
    Correct
    Wrong
  • 2
    168
    Correct
    Wrong
  • 3
    84
    Correct
    Wrong
  • 4
    63
    Correct
    Wrong
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Answer : 3. "84"

Q:

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

908 0

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

Q:

Out of the given responses one of the factors of  (a2-b2)3+(b2-c2)3+(c2-a2)3 is 

2300 0

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

Q:

x = y = 333 and z = 334, then value of x3 + y3 + z3 – 3xyz is 

1188 0

  • 1
    0
    Correct
    Wrong
  • 2
    667
    Correct
    Wrong
  • 3
    1000
    Correct
    Wrong
  • 4
    2334
    Correct
    Wrong
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Answer : 3. "1000"

Q:

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

1956 0

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

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