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Find the Derivative Of $f(x)=\arctan (3 x)$
A) $f^{\prime}(x)=\frac{3}{1+3 x^{2}}$ B) $f^{\prime}(x)=\frac{3}{1+9 x^{2}}$

Question 50

Multiple Choice

Find the derivative of $f(x) =\arctan (3 x)$ .

A) $f^{\prime}(x) =\frac{3}{1+3 x^{2}}$
B) $f^{\prime}(x) =\frac{3}{1+9 x^{2}}$
C) $f^{\prime}(x) =\frac{1}{1+3 x^{2}}$
D) $f^{\prime}(x) =\frac{1}{1+9 x^{2}}$

Find the Derivative Of f(x)=arctan⁡(3x)f(x)=\arctan (3 x)f(x)=arctan(3x) A) f′(x)=31+3x2f^{\prime}(x)=\frac{3}{1+3 x^{2}}f′(x)=1+3x23​ B) f′(x)=31+9x2f^{\prime}(x)=\frac{3}{1+9 x^{2}}f′(x)=1+9x23​

Multiple Choice

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Find the Derivative Of $f(x)=\arctan (3 x)$
A) $f^{\prime}(x)=\frac{3}{1+3 x^{2}}$ B) $f^{\prime}(x)=\frac{3}{1+9 x^{2}}$

Correct Answer:
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