Algebra Practice Question and Answer

Q:

यदि x-y=2, xy=24 है तो (x2+y2) का मान ज्ञात करें।

1064 0

  • 1
    52
    Correct
    Wrong
  • 2
    63
    Correct
    Wrong
  • 3
    36
    Correct
    Wrong
  • 4
    25
    Correct
    Wrong
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Answer : 1. "52"

Q:

यदि $${a\over b}={2\over3}$$ और $${b\over c}={4\over5}$$  है, तो $${a+b}\over {b+c}$$ का अनुपात किसके बराबर होगा ?

1053 0

  • 1
    $${20\over27} $$
    Correct
    Wrong
  • 2
    $${27\over20} $$
    Correct
    Wrong
  • 3
    $${6\over8} $$
    Correct
    Wrong
  • 4
    $${8\over6} $$
    Correct
    Wrong
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Answer : 1. " $${20\over27} $$"

Q:

यदि $$ {P={96\over95×97}},{Q={97\over96×98}}$$  तथा $$ {R={1\over97}}$$ हैं, तो निम्नलिखित में से कौन सा सत्य है?

1045 0

  • 1
    P
    Correct
    Wrong
  • 2
    R
    Correct
    Wrong
  • 3
    Q
    Correct
    Wrong
  • 4
    R
    Correct
    Wrong
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Answer : 2. "R

Q:

यदि a = 2.234, b = 3.121  और c = –5.355, है तो $$ a^3 + b^3 + c^3 – 3abc$$ का मान होगा।

1041 0

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

Q:

यदि $$ {x+{1\over {x}}=1}$$,  है तो $$ {x^{208}+{x^{205}+x^{204}+x^{201}}}$$ का मान क्या होगा?

1039 1

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

Q:

यदि a+b = 1 और a3+b3+3ab=k है तो k का मान ज्ञात करें 

1027 0

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

Q:

यदि $$ {3x+}{2\over {\sqrt{x}}}=1$$  है तो$$ {x-{\sqrt{x}}}=?$$

1024 0

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

Q:

यदि a+b=17 और  a – b =9 हो, तो $$ {(4a^2+4b^2)}$$  का मान बताइए?

1018 0

  • 1
    710
    Correct
    Wrong
  • 2
    720
    Correct
    Wrong
  • 3
    730
    Correct
    Wrong
  • 4
    740
    Correct
    Wrong
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Answer : 4. "740"

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