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Differentiate w.r.t. n
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\left(15n^{1}\right)^{1}\times \frac{1}{30n^{3}}
Use the rules of exponents to simplify the expression.
15^{1}\left(n^{1}\right)^{1}\times \frac{1}{30}\times \frac{1}{n^{3}}
To raise the product of two or more numbers to a power, raise each number to the power and take their product.
15^{1}\times \frac{1}{30}\left(n^{1}\right)^{1}\times \frac{1}{n^{3}}
Use the Commutative Property of Multiplication.
15^{1}\times \frac{1}{30}n^{1}n^{3\left(-1\right)}
To raise a power to another power, multiply the exponents.
15^{1}\times \frac{1}{30}n^{1}n^{-3}
Multiply 3 times -1.
15^{1}\times \frac{1}{30}n^{1-3}
To multiply powers of the same base, add their exponents.
15^{1}\times \frac{1}{30}n^{-2}
Add the exponents 1 and -3.
15\times \frac{1}{30}n^{-2}
Raise 15 to the power 1.
\frac{1}{2}n^{-2}
Multiply 15 times \frac{1}{30}.
\frac{15^{1}n^{1}}{30^{1}n^{3}}
Use the rules of exponents to simplify the expression.
\frac{15^{1}n^{1-3}}{30^{1}}
To divide powers of the same base, subtract the denominator's exponent from the numerator's exponent.
\frac{15^{1}n^{-2}}{30^{1}}
Subtract 3 from 1.
\frac{1}{2}n^{-2}
Reduce the fraction \frac{15}{30} to lowest terms by extracting and canceling out 15.
\frac{\mathrm{d}}{\mathrm{d}n}(\frac{15}{30}n^{1-3})
To divide powers of the same base, subtract the denominator's exponent from the numerator's exponent.
\frac{\mathrm{d}}{\mathrm{d}n}(\frac{1}{2}n^{-2})
Do the arithmetic.
-2\times \frac{1}{2}n^{-2-1}
The derivative of a polynomial is the sum of the derivatives of its terms. The derivative of a constant term is 0. The derivative of ax^{n} is nax^{n-1}.
-n^{-3}
Do the arithmetic.