Detail solution
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Let .
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The derivative of sine is cosine:
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Then, apply the chain rule. Multiply by :
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Differentiate term by term:
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The derivative of a constant times a function is the constant times the derivative of the function.
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Apply the power rule: goes to
So, the result is:
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Apply the power rule: goes to
The result is:
The result of the chain rule is:
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Now simplify:
The answer is:
The first derivative
[src]
/ 2 \
(1 + 24*x)*cos\12*x + x/
$$\left(24 x + 1\right) \cos{\left(12 x^{2} + x \right)}$$
The second derivative
[src]
2
24*cos(x*(1 + 12*x)) - (1 + 24*x) *sin(x*(1 + 12*x))
$$- \left(24 x + 1\right)^{2} \sin{\left(x \left(12 x + 1\right) \right)} + 24 \cos{\left(x \left(12 x + 1\right) \right)}$$
The third derivative
[src]
/ 2 \
-(1 + 24*x)*\72*sin(x*(1 + 12*x)) + (1 + 24*x) *cos(x*(1 + 12*x))/
$$- \left(24 x + 1\right) \left(\left(24 x + 1\right)^{2} \cos{\left(x \left(12 x + 1\right) \right)} + 72 \sin{\left(x \left(12 x + 1\right) \right)}\right)$$