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Find the derivatives of the given functions.$$y=3 \cos ^{-1}\left(x^{2}+0.5\right)$$
$\frac{d y}{d x}=-\frac{6 x}{\sqrt{1-\left(x^{2}+0.5\right)^{2}}}$
Calculus 1 / AB
Chapter 27
Differentiation of Transcendental Functions
Section 3
Derivatives of the Inverse Trigonometric Functions
Derivatives
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Boston College
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we want to find the derivative of Y. With respect to X. For the function while equals three. Our coasts of X squared plus 0.5. To solve this, we're going to rely on tricking electric or rather inverse trig derivatives that we recently learned. We also need to rely on differentiation shortcuts we've learned throughout our journey and single variable calculus. So I have listed here the three major inverse trig derivatives, Arcos, arc sine and our 10. We need to use the Arcos derivative, which is negative one over square root one minus X squared. Since the argument of our coaches expert plus 10.5, we're also going to have a chain rule effect. So why is already written it's most easily differential forms we can see to solve. Dy dx is negative three over square root of one minus X squared plus 10.5 squared by the chain rule. We multiply by the derivative X squared plus 0.5 which is two X. Thus multiplying out our constant and simplifying the denominator we obtain. Do I d x equals negative six X over the square root of one minus x squared plus 10.5 squared as presented on the right and boxed in.
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