Evaluate
\frac{1}{4}=0.25
Factor
\frac{1}{2 ^ {2}} = 0.25
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\frac{\left(\sqrt{6}+\sqrt{2}\right)\left(\sqrt{6}-\sqrt{2}\right)}{4\times 4}
Multiply \frac{\sqrt{6}+\sqrt{2}}{4} times \frac{\sqrt{6}-\sqrt{2}}{4} by multiplying numerator times numerator and denominator times denominator.
\frac{\left(\sqrt{6}\right)^{2}-\left(\sqrt{2}\right)^{2}}{4\times 4}
Consider \left(\sqrt{6}+\sqrt{2}\right)\left(\sqrt{6}-\sqrt{2}\right). Multiplication can be transformed into difference of squares using the rule: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
\frac{6-\left(\sqrt{2}\right)^{2}}{4\times 4}
The square of \sqrt{6} is 6.
\frac{6-2}{4\times 4}
The square of \sqrt{2} is 2.
\frac{4}{4\times 4}
Subtract 2 from 6 to get 4.
\frac{4}{16}
Multiply 4 and 4 to get 16.
\frac{1}{4}
Reduce the fraction \frac{4}{16} to lowest terms by extracting and canceling out 4.
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y = 3x + 4
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}