Question
8) \( \left(\sin ^{3} x\right)^{\prime}= \)
Ask by Moran Herrera. in Russia
Feb 04,2025
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Answer
Производная \( \sin^{3} x \) равна \( 3 \sin^{2} x \cos x \).
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Bonus Knowledge
To find the derivative of \( \left(\sin^3 x\right) \), we can use the chain rule. According to the chain rule, the derivative of \( f(g(x)) \) is \( f'(g(x)) \cdot g'(x) \). Here, let \( f(u) = u^3 \) where \( u = \sin x \). Thus, \( f'(u) = 3u^2 \), and \( g'(x) = \cos x \). Putting it all together, we have: \[ \left(\sin^3 x\right)^{\prime} = 3\sin^2 x \cdot \cos x \] So, the final answer is: \[ \left(\sin^3 x\right)' = 3\sin^2 x \cos x \]