Square Roots and Cube Roots Practice Question and Answer

Q:

किसी संख्या के वर्ग, तथा उसके घन के व्युत्क्रम का अनुपात 243/16807 है। संख्या क्या है ?

530 0

  • 1
    2/7
    Correct
    Wrong
  • 2
    7/3
    Correct
    Wrong
  • 3
    3/7
    Correct
    Wrong
  • 4
    5/7
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "3/7"

Q:

दिया गया है कि √4096 = 64, तो  √4096 + √40.96 +√0.004096 का मान है-

464 0

  • 1
    70.4
    Correct
    Wrong
  • 2
    70.464
    Correct
    Wrong
  • 3
    71.104
    Correct
    Wrong
  • 4
    71.4
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "70.464"
Explanation :

दिया गया = √4096 + √40.96 +√0.004096

= 64 + 6.4 + 0.064

= 70.464

Q:

√6+√6+√6+… बराबर है –

430 0

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

Answer : 4. "3"
Explanation :

Let √6+√6+√6+…. be x.

We know x =√6+x

We know x2 = 6+x

We know x2 - x – 6 = 0

We know (x-3) (x+2) = 0

We know x = 3

Q:

निम्नलिखित प्रश्न में प्रश्न चिह्न (?) के स्थान पर क्या आएगा?

  $$?=5\sqrt{ \left(243 \right)^2}$$

516 0

  • 1
    7
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    9
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "9"

Q:

निम्नलिखित द्विघात समीकरणों में से किसके वास्तविक मूल हैं?

548 0

  • 1
    4x- 7x + 5 = 0
    Correct
    Wrong
  • 2
    5x2 - 11x + 7 = 0
    Correct
    Wrong
  • 3
    5x2 - 11x + 8 = 0
    Correct
    Wrong
  • 4
    2x2 - 7x + 5 = 0
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "2x2 - 7x + 5 = 0"

  • Show AnswerHide Answer
  • Workspace

Answer : 1. "2"

Q:

$$ {^3\sqrt{\sqrt{0.000729}}}+^3{\sqrt{0.008}}$$ का मान होगा—

745 0

  • 1
    0.1
    Correct
    Wrong
  • 2
    0.5
    Correct
    Wrong
  • 3
    0.06
    Correct
    Wrong
  • 4
    0.8
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "0.5"

Q:

$$ {\sqrt{625}+\sqrt{484}}$$ का मान क्या होगा?

802 1

  • 1
    47
    Correct
    Wrong
  • 2
    56
    Correct
    Wrong
  • 3
    52
    Correct
    Wrong
  • 4
    36
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "47"

      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