Algebra Practice Question and Answer

Q:

यदि a=25, b=15 , c=-10  हो तो $$ {a^{3}+b^{3}+c^{3}-3abc\over {(a-b)^{2}+(b-c)^{2} +(c-a)^{2}}}$$  का मान ज्ञात करों?

1275 0

  • 1
    30
    Correct
    Wrong
  • 2
    -15
    Correct
    Wrong
  • 3
    -30
    Correct
    Wrong
  • 4
    15
    Correct
    Wrong
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Answer : 4. "15"

Q:

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

1271 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. "$$2{1\over 9}$$"

Q:

यदि $$64^{x+1}={64\over 4^x}$$ है, तो x का मान ज्ञात करे 

1252 0

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

Q:

यदि (x + 6y) = 8, और xy = 2, जहाँ x > O, (x3+216y3) का मान क्या है?

1249 0

  • 1
    476
    Correct
    Wrong
  • 2
    288
    Correct
    Wrong
  • 3
    224
    Correct
    Wrong
  • 4
    368
    Correct
    Wrong
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Answer : 3. "224"

Q:

यदि x = a - b, y = b - c, z = c - a, है, तो बीजगणितीय व्यंजक x3 +y3 + z3 -3xyz का आंकिक मान ज्ञात करें । 

1247 0

  • 1
    4 (a+b+c)
    Correct
    Wrong
  • 2
    3 abc
    Correct
    Wrong
  • 3
    a + b + c
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
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Answer : 4. "0"

Q:

यदि 15x– 26x + 8 = (Ax + B) (Cx + D), जहां A और C धनात्मक पूर्णांक हैं, तो (2A + B – C – 2D) का मान क्या है?

1247 0

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

Q:

a2+b2+c2-2ab-2bc+2ca का मान क्या है?

1244 0

  • 1
    (2a + b + c)2
    Correct
    Wrong
  • 2

    (a − b + c)2

    Correct
    Wrong
  • 3

    (a − b − 2c)2

    Correct
    Wrong
  • 4

    (a + 2b − c)2

    Correct
    Wrong
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Answer : 2. "

(a − b + c)2

"

Q:

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

1241 0

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

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