Algebra Practice Question and Answer

Q:

यदि $$ {x^{2}+3{x}+1=0}$$ है तो $$ {x^{3}+{1\over {x^{3}}}}$$ का मान होगा।

910 0

  • 1
    -18
    Correct
    Wrong
  • 2
    18
    Correct
    Wrong
  • 3
    36
    Correct
    Wrong
  • 4
    -36
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "-18"

Q:

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

909 0

  • 1
    1
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    -1
    Correct
    Wrong
  • 4
    2
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

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
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "1"

Q:

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

905 0

  • 1
    2
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

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

900 0

  • 1
    2613
    Correct
    Wrong
  • 2
    2813
    Correct
    Wrong
  • 3
    3013
    Correct
    Wrong
  • 4
    3213
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

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
  • Show AnswerHide Answer
  • Workspace

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
  • Show AnswerHide Answer
  • Workspace

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
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "3"

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully