Algebra
Radical Expressions and Equations
Evaluate \( \sqrt{ 40 ^2 + 42 ^2}\).
The value of \[\sqrt{\frac{5}{72}} \left(\sqrt{\frac{9}{40}}-\sqrt{\frac{8}{45}}\right)\] can be expressed as \(\frac{1}{a}\). What is \(a\)?
Evaluate
\[ \sqrt{2} - \frac{1}{ \sqrt{2} - \dfrac{1}{ \sqrt{2} - \dfrac{1}{\sqrt{2}-1} } }. \]
Evaluate
\[ \left( 4\sqrt{3} +7 \right)^{2016} \left( 4\sqrt{3} -7 \right)^{2016}. \]
What is the value of
\[ \sqrt{ 24 } \times \sqrt{3} \times \sqrt{ 8 } ? \]