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Given the function\newliney=sin(64x2),y=\sin(\sqrt{6-4x^{2}}), find \newline(dydx).(\frac{dy}{dx}).

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Q. Given the function\newliney=sin(64x2),y=\sin(\sqrt{6-4x^{2}}), find \newline(dydx).(\frac{dy}{dx}).
  1. Identify outermost function: Identify the outermost function and start differentiating using the chain rule.\newlineThe outermost function is the sine function. We will apply the chain rule which states that the derivative of a composite function is the derivative of the outer function evaluated at the inner function times the derivative of the inner function.
  2. Differentiate outer function: Differentiate the outer function with respect to its inner function.\newlineThe derivative of sin(u)\sin(u) with respect to uu is cos(u)\cos(u), where uu is the inner function 64x2\sqrt{6-4x^2}. So we have:\newlinedydx=cos(64x2)d(64x2)dx\frac{dy}{dx} = \cos(\sqrt{6-4x^2}) \cdot \frac{d(\sqrt{6-4x^2})}{dx}
  3. Differentiate inner function: Differentiate the inner function 64x2\sqrt{6-4x^2} with respect to xx. The inner function is a square root function, and we can rewrite 64x2\sqrt{6-4x^2} as (64x2)12(6-4x^2)^{\frac{1}{2}}. Using the chain rule again, the derivative of (64x2)12(6-4x^2)^{\frac{1}{2}} with respect to xx is 12(64x2)12d(64x2)dx\frac{1}{2}(6-4x^2)^{-\frac{1}{2}} \cdot \frac{d(6-4x^2)}{dx}.
  4. Differentiate innermost function: Differentiate the innermost function 64x26-4x^2 with respect to xx. The derivative of 66 with respect to xx is 00, and the derivative of 4x2-4x^2 with respect to xx is 8x-8x. So we have: (d(64x2))/(dx)=8x(d(6-4x^2))/(dx) = -8x
  5. Combine derivatives: Combine the derivatives from the previous steps to find the final derivative. Substitute the derivative of the innermost function into the derivative of the inner function, and then multiply by the derivative of the outer function: dydx=cos(64x2)(12)(64x2)12(8x)\frac{dy}{dx} = \cos(\sqrt{6-4x^2}) \cdot \left(\frac{1}{2}\right)(6-4x^2)^{-\frac{1}{2}} \cdot (-8x)
  6. Simplify expression: Simplify the expression.\newlinedydx=4xcos(64x2)/64x2\frac{dy}{dx} = -4x \cdot \cos(\sqrt{6-4x^2}) / \sqrt{6-4x^2}\newlineThis is the simplified form of the derivative.

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