Differentiate the following, please

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SUMMARY

This discussion focuses on differentiating two mathematical functions: i) \( x = 3t^3 + 6\sqrt{t} + \frac{3}{t^2} \) and ii) \( y = 3\sin(2x) + 5\cos(4x) \). The derivative rules applied include the constant multiple rule and the power rule. The derivatives calculated are \( \frac{dx}{dt} = 9t^2 + \frac{3}{2\sqrt{t}} - \frac{6}{t^3} \) for the first function and \( \frac{dy}{dx} = 6\cos(2x) - 20\sin(4x) \) for the second function. These calculations illustrate fundamental principles of calculus.

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1875
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If you would be so kind, I missed today's lecture and do not even know where to begin.

i) x = 3t^3 + 6√t + 3/t^2

ii) y = 3sin 2x + 5cos(4x)
 
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1875 said:
If you would be so kind, I missed today's lecture and do not even know where to begin.

i) x = 3t^3 + 6√t + 3/t^2

ii) y = 3sin 2x + 5cos(4x)

The derivative of a constant times a function
is equal to the constant times the derivative of the function."
d
dx 5x² = 5· 2x = 10x.

d
dx 8x = 8· 1 = 8.
 

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