Algebra Question with answer Practice Question and Answer

Q:

यदि $$ {x+{1\over x}=\sqrt{3}}$$  है तो $$ {x^{48}+x^{378\over7}+x^{726\over11}+x^{60}}$$

908 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 $$ x={\sqrt3\over{2}}$$ है, तो $$ \sqrt{1+x}-\sqrt{1-x}$$  का मान ज्ञात करें।

908 0

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

Q:

यदि a2+b2+c2 = 2(a – b – c) – 3  है, तो 4a – 3b + 5c का मान ज्ञात करें।

904 0

  • 1
    2
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
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Answer : 1. "2"

Q:

यदि x – y + z = 15, xyz = -216 और xz – xy – yz = 18 है तो $$ {x^3}-{y^3}+{z^3}=$$ इसका मान होगा

899 0

  • 1
    2613
    Correct
    Wrong
  • 2
    2813
    Correct
    Wrong
  • 3
    3013
    Correct
    Wrong
  • 4
    3213
    Correct
    Wrong
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Answer : 4. "3213"

Q:

यदि 0.4 m + 0.8 n = 2.2 और 0.8 m + 0.4 n = 1.4, हो, तो $$ {m^2}+{n^2}$$का मान क्‍या हाेगा?

895 0

  • 1
    8.5
    Correct
    Wrong
  • 2
    6.5
    Correct
    Wrong
  • 3
    16
    Correct
    Wrong
  • 4
    9
    Correct
    Wrong
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Answer : 2. "6.5"

Q:

एक आयत के दो असमान भुजाओं का अनुपात 1 : 2 है यदि इसका परिमाप 24 सेमी है तो विकर्ण की लम्बाई सेमी में क्या होगी ?

891 0

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

Q:

n का मान ज्ञात कीजिये जब $$ {n=\sqrt{n+ 2 \sqrt{n+2\sqrt{n+2\sqrt{3n}}}}}$$

890 0

  • 1
    1
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    9
    Correct
    Wrong
  • 4
    12
    Correct
    Wrong
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Answer : 2. "3"

Q:

$$ \sqrt{6+\sqrt {6+\sqrt {6+....}}}$$ का मान होगा।

883 0

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

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