Evaluate
\frac{4a^{3}}{b}
Differentiate w.r.t. a
\frac{12a^{2}}{b}
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\frac{12a^{2}b^{2}}{7}\times \frac{14ab}{6b^{4}}
Cancel out a in both numerator and denominator.
\frac{12a^{2}b^{2}}{7}\times \frac{7a}{3b^{3}}
Cancel out 2b in both numerator and denominator.
\frac{12a^{2}b^{2}\times 7a}{7\times 3b^{3}}
Multiply \frac{12a^{2}b^{2}}{7} times \frac{7a}{3b^{3}} by multiplying numerator times numerator and denominator times denominator.
\frac{4aa^{2}}{b}
Cancel out 3\times 7b^{2} in both numerator and denominator.
\frac{4a^{3}}{b}
To multiply powers of the same base, add their exponents. Add 1 and 2 to get 3.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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}