Evaluate
-\frac{ab}{\left(b-a\right)^{2}}
Differentiate w.r.t. b
\frac{a\left(a+b\right)}{\left(b-a\right)^{3}}
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\frac{ba}{\left(a-b\right)\left(b-a\right)}
Multiply \frac{b}{a-b} times \frac{a}{b-a} by multiplying numerator times numerator and denominator times denominator.
\frac{ba}{ab-a^{2}-b^{2}+ba}
Apply the distributive property by multiplying each term of a-b by each term of b-a.
\frac{ba}{2ab-a^{2}-b^{2}}
Combine ab and ba to get 2ab.
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}