Question

1 1 If V2 = 1.4 then find the value of 212​

Answer 1

• √2=1.4
• 1/√2=?

Solution

$\sf~~~\implies~~~~ \dfrac{1}{ \sqrt{2} }$

$\sf~~~\implies~~~~ \dfrac{1}{ \sqrt{2} } \times \dfrac{ \sqrt{2} }{ \sqrt{2} }$

$\sf ~~~\implies~~~~\dfrac{ \sqrt{2} }{ (\sqrt{2}) ^{2} }$

$\sf ~~~\implies~~~~\dfrac{ \sqrt{2} }{ 2 }$

• Given √2 = 1.4 .

$\sf ~~~\implies~~~~\dfrac{ 1.4 }{ 2 }$

$\sf ~~~\implies~~~~\dfrac{ 14 }{ 2 0 }$

$\sf~~~\implies~~~~ \dfrac{7}{ 10 } = 0.7$

Answer 2

$\huge { \boxed{ \underline{ \mathbb{ \purple{Solution:- }}}}}$

$\tt~~~\implies~~~~ \dfrac \red{1}{ \sqrt \pink{2} }$

$\tt~~~\implies~~~~ \dfrac \pink{1}{ \sqrt \red{2} } \times \dfrac{ \sqrt \blue{2} }{ \sqrt \purple{2} }$

$\tt ~~~\implies~~~~\dfrac \green{ \sqrt{2} } \blue{ (\sqrt{2}) ^{2} }$

$\tt ~~~\implies~~~~\dfrac \pink{ \sqrt{2} } \purple{ 2 }$

• Given √2 = 1.4

$\tt~~~\implies~~~~\dfrac \red{ 1.4 } \orange{ 2 }$

$\tt~~~\implies~~~~\dfrac \pink{ 14 } \red{ 2 0 }$

$\tt~~~\implies~~~~ \dfrac \blue{7} \green{ 10 }$

=0.7