Algebra Practice Question and Answer

Q:

यदि 2x2 – 7x + 5 =0, तो $$x^2+{25\over 4x^2}$$ का मान क्या है

386 0

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

Q:

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

438 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 $$\sqrt { 11- 3\sqrt { 8}}=a+b\sqrt { 2}$$, तो (2a+3b) का मान क्या है?

499 0

  • 1
    7
    Correct
    Wrong
  • 2
    9
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    5
    Correct
    Wrong
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Answer : 3. "3"

Q:

यदि (x + y)3 +8 (x - y)3 = (3x+ Ay)(3x2+ Bxy+ Cy2), तो A+B+C का मान है:

408 0

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

Q:

यदि 9x2 + y2 = 37 और xy = 2, x, y>0, तो (27x3+ y3) का मान है:

400 0

  • 1
    301
    Correct
    Wrong
  • 2
    217
    Correct
    Wrong
  • 3
    207
    Correct
    Wrong
  • 4
    259
    Correct
    Wrong
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Answer : 2. "217"

Q:

यदि  (10 a3+4b3):(11a3-15b3)=7:5, तो (3a+5b):(9a-2b)=?

389 0

  • 1
    10:13
    Correct
    Wrong
  • 2
    8:7
    Correct
    Wrong
  • 3
    5:4
    Correct
    Wrong
  • 4
    3:2
    Correct
    Wrong
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Answer : 1. "10:13"

Q:

व्यंजक$${15(\sqrt { 10}+\sqrt { 5})\over \sqrt { 10}+\sqrt { 20}+\sqrt { 40}-\sqrt { 5}-\sqrt { 80}   }$$इसके बराबर है:

379 0

  • 1
    $$10(3+2 \sqrt { 5})$$
    Correct
    Wrong
  • 2
    $$5+(2 \sqrt { 2})$$
    Correct
    Wrong
  • 3
    $$5(3+2 \sqrt { 2})$$
    Correct
    Wrong
  • 4
    $$5-(2 \sqrt { 5})$$
    Correct
    Wrong
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Answer : 3. "$$5(3+2 \sqrt { 2})$$"

Q:

यदि 3x2-5x+1=0, तो ( $$x^2+{1\over 9x^2}$$) का मान है

469 0

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

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