The square root of 441-961 is -

The correct option is C 21/31 We have to find square root of 441/961 ∴√(144)/√(961)=21/31 ...

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Standard XII

Mathematics

Global Maxima

The square ro...

Question

The square root of $\frac{441}{961}$ is :

\frac{21}{39}

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\frac{37}{21}

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\frac{21}{31}

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\frac{11}{13}

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Solution

The correct option is C $\frac{21}{31}$
We have to find square root of $\frac{441}{961}$
$∴ \frac{\sqrt{144}}{\sqrt{961}} = \frac{21}{31}$

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Similar questions

Find the square root of:

31 + 4 \sqrt{21}

If $Δ ∣ ∣ ∣ ∣ \begin{matrix} a_{11} & a_{12} & a_{13} a_{21} & a_{22} & a_{23} a_{31} & a_{32} & a_{33} \end{matrix} ∣ ∣ ∣ ∣$ and $A_{i j}$ is cofactor of $a_{i j}$ , then value of $Δ$ is given by

a) $a_{11} A_{31} + a_{12} A_{32} + a_{13} A_{33}$
b) $a_{11} A_{11} + a_{12} A_{21} + a_{13} A_{31}$
c) $a_{21} A_{11} + a_{22} A_{12} + a_{23} A_{13}$
d) $a_{11} A_{11} + a_{21} A_{21} + a_{31} A_{31}$

The length of a side of a square whose area is $441$ sq cm is

Q. If

A = |\begin{matrix} a_{11} & a_{12} & a_{13} \\ a_{21} & a_{22} & a_{23} \\ a_{31} & a_{32} & a_{33} \end{matrix}|

and C_ij is cofactor of a_ij in A, then value of |A| is given by

(a) a₁₁ C₃₁ + a₁₂C₃₂ + a₁₃ C₃₃
(b) a₁₁ C₁₁ + a₁₂ C₂₁ + a₁₃ C₃₁
(c) a₂₁ C₁₁ + a₂₂ C₁₂ + a₂₃ C₁₃
(d) a₁₁ C₁₁ + a₂₁ C₂₁ + a₁₃ C₃₁

3 \frac{1}{12} - [1 \frac{3}{4} + {2 \frac{1}{2} - (1 \frac{1}{2} - \frac{1}{3})}]

= ___

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The square root of 441961 is :

The correct option is C 2131We have to find square root of 441961∴√144√961=2131

The square root of $\frac{441}{961}$ is :

The correct option is C $\frac{21}{31}$
We have to find square root of $\frac{441}{961}$
$∴ \frac{\sqrt{144}}{\sqrt{961}} = \frac{21}{31}$