\frac { 1 } { ( t _ { 2 } - t _ { 1 } ) } \cdot ( 20 \cdot ( t _ { 2 } - t _ { 1 } ) - 8000 \cdot ( e ^ { - 0,01 t _ { 3 } } - e ^ { - 0,014 } ) )
Evaluate
\frac{8000e^{-\frac{t_{3}}{100}}}{t_{1}-t_{2}}+\frac{20t_{1}}{t_{1}-t_{2}}-\frac{20t_{2}}{t_{1}-t_{2}}-\frac{8000}{e^{0,014}\left(t_{1}-t_{2}\right)}
Factor
\frac{20\left(400e^{-\frac{t_{3}}{100}}+t_{1}-t_{2}-\frac{400}{e^{0,014}}\right)}{t_{1}-t_{2}}
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