Evaluate
1458e^{21}b^{9}
Differentiate w.r.t. b
13122e^{21}b^{8}
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\frac{16e^{12}\times 729}{8}e^{9}b^{9}
Calculate 3 to the power of 6 and get 729.
\frac{11664e^{12}}{8}e^{9}b^{9}
Multiply 16 and 729 to get 11664.
1458e^{12}e^{9}b^{9}
Divide 11664e^{12} by 8 to get 1458e^{12}.
1458e^{21}b^{9}
To multiply powers of the same base, add their exponents. Add 12 and 9 to get 21.
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