Algebra Question with answer Practice Question and Answer

Q:

यदि (27x3 – 343y3) ÷ (3x – 7y) = Ax2 +By2 + 7Cyx,  है तो (4A – B +5C)  का मान होगा—

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    1
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    3
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    2
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  • 4
    0
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Answer : 3. "2"

Q:

निम्नलिखित समीकरण को हल कीजिए।

$$ (1-{1\over3})(1-{1\over4})(1-{1\over5})......(1-{1\over n})$$

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  • 1
    $$ 1\over{n}$$
    Correct
    Wrong
  • 2
    $$ 2\over{n}$$
    Correct
    Wrong
  • 3
    $$ 2(n-1)\over{n}$$
    Correct
    Wrong
  • 4
    $$ 2\over{n(n+1)}$$
    Correct
    Wrong
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Answer : 2. "$$ 2\over{n}$$"

Q:

यदि $$ ({x+y\over z})=2$$ ,  है, तो $$ [{ {y\over {y-z}}}] +[{ {x\over {x-z}}}]$$. का मान क्या है?

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    1
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    2
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    -1
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Answer : 3. "2"

Q:

यदि $$ x=\sqrt{\sqrt{5}+1\over {\sqrt{5}-1}}$$  है तो $$ {5x^2-5x-1}$$ का मान है।

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    4
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    5
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Answer : 3. "4"

Q:

दो संख्याएं x और y (x>y) इस प्रकार है की उनका योग उनके अंतर का तीन गुना है, तो $$3xy\over 2(x^2-y^2$$ का मान ज्ञात करें।  

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

Q:

यदि a, b परिमेय संख्याऐ है और (a-1)√2+3=b√2+a है तो (a+b) का मान क्या होगा ?

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    -3
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    5
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    -5
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    3
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Answer : 2. "5"

Q:

यदि $$ {x^2} -4x-1 $$  है तो इसका $$ {{x^6} -{x^4}+{x^2}-1}\over {x^3}$$  मान होगा

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  • 1
    72
    Correct
    Wrong
  • 2
    76
    Correct
    Wrong
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    80
    Correct
    Wrong
  • 4
    84
    Correct
    Wrong
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Answer : 1. "72"

Q:

यदि $$ {x^{12}+x^{3}\over {x^{6}}}=0$$  है तो $$ {x^{36}+{1\over x^{36}}}$$ का मान ज्ञात किजिए

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    1
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    4
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Answer : 1. "2"

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