- Started with
\[\frac{b \cdot c - a \cdot d}{{c}^2 + {d}^2}\]
19.1
- Using strategy
rm 19.1
- Applied add-sqr-sqrt to get
\[\frac{b \cdot c - a \cdot d}{{c}^2 + \color{red}{{d}^2}} \leadsto \frac{b \cdot c - a \cdot d}{{c}^2 + \color{blue}{{\left(\sqrt{{d}^2}\right)}^2}}\]
19.1
- Applied simplify to get
\[\frac{b \cdot c - a \cdot d}{{c}^2 + {\color{red}{\left(\sqrt{{d}^2}\right)}}^2} \leadsto \frac{b \cdot c - a \cdot d}{{c}^2 + {\color{blue}{\left(\left|d\right|\right)}}^2}\]
19.0
- Applied taylor to get
\[\frac{b \cdot c - a \cdot d}{{c}^2 + {\left(\left|d\right|\right)}^2} \leadsto \left(\frac{b}{c} + \frac{d \cdot \left(a \cdot {\left(\left|\frac{1}{d}\right|\right)}^2\right)}{{c}^{4}}\right) - \frac{d \cdot a}{{c}^2}\]
6.1
- Taylor expanded around inf to get
\[\color{red}{\left(\frac{b}{c} + \frac{d \cdot \left(a \cdot {\left(\left|\frac{1}{d}\right|\right)}^2\right)}{{c}^{4}}\right) - \frac{d \cdot a}{{c}^2}} \leadsto \color{blue}{\left(\frac{b}{c} + \frac{d \cdot \left(a \cdot {\left(\left|\frac{1}{d}\right|\right)}^2\right)}{{c}^{4}}\right) - \frac{d \cdot a}{{c}^2}}\]
6.1
- Applied taylor to get
\[\left(\frac{b}{c} + \frac{d \cdot \left(a \cdot {\left(\left|\frac{1}{d}\right|\right)}^2\right)}{{c}^{4}}\right) - \frac{d \cdot a}{{c}^2} \leadsto \left(\frac{b}{c} + 0\right) - \frac{d \cdot a}{{c}^2}\]
5.7
- Taylor expanded around inf to get
\[\left(\frac{b}{c} + \color{red}{0}\right) - \frac{d \cdot a}{{c}^2} \leadsto \left(\frac{b}{c} + \color{blue}{0}\right) - \frac{d \cdot a}{{c}^2}\]
5.7
- Applied simplify to get
\[\left(\frac{b}{c} + 0\right) - \frac{d \cdot a}{{c}^2} \leadsto \frac{b}{c} - \frac{d}{c} \cdot \frac{a}{c}\]
0.4
- Applied final simplification