How do the derivatives of sin−1(x) and cos−1(x) relate?
dxd[cos−1(x)] is the negative of dxd[sin−1(x)]. Specifically, dxd[sin−1(x)]=1−x21 and dxd[cos−1(x)]=−1−x21
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How do the derivatives of $\sin^{-1}(x)$ and $\cos^{-1}(x)$ relate?
$\frac{d}{dx}[\cos^{-1}(x)]$ is the negative of $\frac{d}{dx}[\sin^{-1}(x)]$. Specifically, $\frac{d}{dx}[\sin^{-1}(x)] = \frac{1}{\sqrt{1-x^2}}$ and $\frac{d}{dx}[\cos^{-1}(x)] = -\frac{1}{\sqrt{1-x^2}}$
How do the derivatives of $\tan^{-1}(x)$ and $\cot^{-1}(x)$ relate?
$\frac{d}{dx}[\cot^{-1}(x)]$ is the negative of $\frac{d}{dx}[\tan^{-1}(x)]$. Specifically, $\frac{d}{dx}[\tan^{-1}(x)] = \frac{1}{1+x^2}$ and $\frac{d}{dx}[\cot^{-1}(x)] = -\frac{1}{1+x^2}$
How do the derivatives of $\sec^{-1}(x)$ and $\csc^{-1}(x)$ relate?
$\frac{d}{dx}[\csc^{-1}(x)]$ is the negative of $\frac{d}{dx}[\sec^{-1}(x)]$. Specifically, $\frac{d}{dx}[\sec^{-1}(x)] = \frac{1}{\lvert{x}\rvert\sqrt{x^{2}-1}}$ and $\frac{d}{dx}[\csc^{-1}(x)] = -\frac{1}{\lvert{x}\rvert\sqrt{x^{2}-1}}$
How do you differentiate $\sin^{-1}(u(x))$ where u(x) is a function of x?
1. Apply the chain rule: $\frac{d}{dx} [\sin^{-1}(u(x))] = \frac{1}{\sqrt{1 - (u(x))^2}} \cdot u'(x)$. 2. Simplify the expression.
How do you differentiate $\tan^{-1}(u(x))$ where u(x) is a function of x?
1. Apply the chain rule: $\frac{d}{dx} [\tan^{-1}(u(x))] = \frac{1}{1 + (u(x))^2} \cdot u'(x)$. 2. Simplify the expression.