Algebra Question with answer Practice Question and Answer

Q:

यदि $$ {x+{1\over x}}=2$$ है तो $${2x^2+2}\over{3x^2+5x+3}$$ का मान होगा?

1130 0

  • 1
    $${4\over 11}$$
    Correct
    Wrong
  • 2
    $${5\over 11}$$
    Correct
    Wrong
  • 3
    $${7\over 5}$$
    Correct
    Wrong
  • 4
    $${4\over 9}$$
    Correct
    Wrong
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Answer : 1. "$${4\over 11}$$"

Q:

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

1121 0

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

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।  

1114 0

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

Q:

If $$ {x+{9\over x}=6}$$  then find the value of $$ {x^{2}+{1\over x^{3}}}$$

1111 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 $$x-{1\over 5},x≠0,$$ तो $${x^6+3x^3-1}\over x^6-8x^3-1$$ का मूल्य क्या है =?

1106 0

  • 1
    $$3\over 8$$
    Correct
    Wrong
  • 2
    $$13\over 12$$
    Correct
    Wrong
  • 3
    $$4\over 9$$
    Correct
    Wrong
  • 4
    $$11\over 13$$
    Correct
    Wrong
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Answer : 2. "$$13\over 12$$"

Q:

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

1103 0

  • 1
    72
    Correct
    Wrong
  • 2
    76
    Correct
    Wrong
  • 3
    80
    Correct
    Wrong
  • 4
    84
    Correct
    Wrong
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Answer : 1. "72"

Q:

यदि $$ {(x-5)^{2} +{(y-2)^{2}}+{(z-9)^{2}=0}}$$  है तो (x+y-z) का मान क्या होगा?

1098 0

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

Q:

यदि x एक वास्तविक संख्या है, तो (x2-x-1)  का न्यूनतम मान क्या होगा ?

1093 0

  • 1
    1
    Correct
    Wrong
  • 2
    $$-{5\over 4}$$
    Correct
    Wrong
  • 3
    $$3\over 4 $$
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
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Answer : 2. " $$-{5\over 4}$$"

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