Algebra Practice Question and Answer

Q:

यदि $${3-5x\over 2x}+{3-5y\over 2y}+{3-5z\over 2z}=0$$ है, तो $${2\over x}+{2\over y}+{2\over z}$$ का मान ज्ञात करें।

1195 0

  • 1
    20
    Correct
    Wrong
  • 2
    10
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    15
    Correct
    Wrong
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Answer : 2. "10"

Q:

यदि $$ \ {xy\over x+y}= a, $$ $${xz\over x+z}=b $$ and $$ {yz\over y+z} =c $$ है, जहाँ a, b, c सभी अशून्य संख्याऐ है, तो x का मान किसके बराबर है ?

1446 0

  • 1
    $$ 2abc\over {ab+bc-ac} $$
    Correct
    Wrong
  • 2
    $$ 2abc\over {ab+ac-ac} $$
    Correct
    Wrong
  • 3
    $$ 2abc\over {ac+bc-ab} $$
    Correct
    Wrong
  • 4
    $$ 2abc\over {ac+bc-ac} $$
    Correct
    Wrong
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Answer : 3. "$$ 2abc\over {ac+bc-ab} $$"

Q:

x4+64 का सम्पूर्ण गुणनखंड करें ?

522 0

  • 1
    $$\left(x^2+8 \right)^2 \ $$
    Correct
    Wrong
  • 2
    $$\left(x^2+8 \right) \ (x^2-8)$$
    Correct
    Wrong
  • 3
    $$\left(x^2-4x+8 \right) \ (x^2-4x-8)$$
    Correct
    Wrong
  • 4
    $$\left(x^2+4x+8 \right) \ (x^2-4x+8)$$
    Correct
    Wrong
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Answer : 4. "$$\left(x^2+4x+8 \right) \ (x^2-4x+8)$$"

Q:

यदि p3 – q3 = (p-q)[(p-q)2+xpq)]  हो, तो x का मान ज्ञात कीजिये

587 0

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

Q:

यदि $$x+{1\over x}=c{1\over c}$$  तो x का मान बताइए ?

524 0

  • 1
    c, 1\c
    Correct
    Wrong
  • 2
    c, c2
    Correct
    Wrong
  • 3
    c, 2c
    Correct
    Wrong
  • 4
    0, 1
    Correct
    Wrong
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Answer : 1. "c, 1\c "

Q:

यदि P = 99, तो P(P2+3P+3)  का मान बताइए ?

446 0

  • 1
    999
    Correct
    Wrong
  • 2
    999999
    Correct
    Wrong
  • 3
    99999
    Correct
    Wrong
  • 4
    99
    Correct
    Wrong
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Answer : 2. "999999"

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Answer : 1. "6480"

Q:

यदि $${x}^2+{y}^2x+1=0$$ है, तो $$x^{31}+y{35}$$ का मान क्या होगा?

1119 0

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

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