Algebra Question with answer 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 pq+qr+rp= है तो $$ {p^{2}\over {p^{2}-qr}}+{q^{2}\over {q^{2}-rp}}+{r^{2}\over {r^{2}-pq}}$$ का मान होगा—

1805 0

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

Q:

(x+2y) (x+ 4y2 – 2xy) बराबर है- 

1014 0

  • 1
    $$5x^3 +8y^3$$
    Correct
    Wrong
  • 2
    $$x^3 +5y^3$$
    Correct
    Wrong
  • 3
    $$x^3 +8y^3$$
    Correct
    Wrong
  • 4
    $$2x^3 +3y^3$$
    Correct
    Wrong
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Answer : 3. "$$x^3 +8y^3$$"

Q:

यदि $$ {x+{1\over x}=\sqrt{3}}$$  है तो $$ {x^{48}+x^{378\over7}+x^{726\over11}+x^{60}}$$

908 0

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

Q:

यदि (a-b)2 + (b-c)2 + (c-a)2 = 0, (a3+b3+c3-3abc) तो  का मान ज्ञात कीजिये ?

955 0

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

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 a =500, b=502 और c=504 है तो a3 +b3 +c3-3abc का मान होगा—

964 0

  • 1
    17040
    Correct
    Wrong
  • 2
    18072
    Correct
    Wrong
  • 3
    12048
    Correct
    Wrong
  • 4
    15050
    Correct
    Wrong
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Answer : 2. "18072"

Q:

यदि $$ {8x\over{2x^{2}+7x-2}}=1, x>0,$$  है तो $$ {x^{3}+{1\over x^{3}}}$$ का मान क्या होगा?

798 0

  • 1
    $$ {3\over 8}{\sqrt{17}}$$
    Correct
    Wrong
  • 2
    $$ {3\over 4}{\sqrt{17}}$$
    Correct
    Wrong
  • 3
    $$ {5\over 8}{\sqrt{17}}$$
    Correct
    Wrong
  • 4
    $$ {5\over 4}{\sqrt{17}}$$
    Correct
    Wrong
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Answer : 3. "$$ {5\over 8}{\sqrt{17}}$$"

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