Evaluate
4
Factor
2^{2}
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\frac{12\sqrt{7}}{\sqrt{63}}
Calculate the square root of 144 and get 12.
\frac{12\sqrt{7}}{3\sqrt{7}}
Factor 63=3^{2}\times 7. Rewrite the square root of the product \sqrt{3^{2}\times 7} as the product of square roots \sqrt{3^{2}}\sqrt{7}. Take the square root of 3^{2}.
4
Cancel out 3\sqrt{7} in both numerator and denominator.
Examples
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Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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