Evaluate
\frac{19ba^{2}}{2}
Differentiate w.r.t. a
19ab
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\frac{13}{2}a^{2}b+3a^{2}b
Combine \frac{3}{2}a^{2}b and 5a^{2}b to get \frac{13}{2}a^{2}b.
\frac{19}{2}a^{2}b
Combine \frac{13}{2}a^{2}b and 3a^{2}b to get \frac{19}{2}a^{2}b.
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