Derivative of sin(7x)*cos(7x)

Answer

−7⋅sin(7⋅x)2+7⋅cos(7⋅x)2-7 \cdot \mathrm{sin}\left(7 \cdot x\right)^{2}+7 \cdot \mathrm{cos}\left(7 \cdot x\right)^{2}
-7*sin(7*x)^2+7*cos(7*x)^2

Derivative of sin(7x)*cos(7x)

Rule Used
Product Rule
Steps
  1. Identify a product of two functions of x in sin⁡(7⋅x)\sin(7 \cdot x)*cos⁡(7⋅x)\cos(7 \cdot x): use the product rule (uv)' = u'v + uv'. Each factor is differentiated once while the other is held as-is, then the two terms are added.
  2. Differentiate each factor and combine.
  3. Final answer: -7⋅s7 \cdot sin(7⋅x7 \cdot x)^2+7⋅c7 \cdot cos(7⋅x7 \cdot x)^2

The derivative of sin(7*x)*cos(7*x) is -7*sin(7*x)^2+7*cos(7*x)^2.

Instant step-by-step solution for sin(7x)*cos(7x)

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Derivative of sin(7x)*cos(7x) = -7*sin(7*x)^2+7*cos(7*x)^2 Solve step-by-step for free: https://derivativecalculatorai.com/derivative-of-sin7xcos7x

How to find the derivative of sin(7x)*cos(7x)

To find the derivative of sin(7x)*cos(7x), we use standard differentiation rules. Our AI-powered calculator breaks down the steps and explains the logic.

Frequently Asked Questions

What is the derivative of sin(7x)*cos(7x)?▼
The derivative of sin(7x)*cos(7x) is -7*sin(7*x)^2+7*cos(7*x)^2.
How do you find the derivative of sin(7x)*cos(7x)?▼
Apply the standard differentiation rules — the key rule used here is the Product Rule. The step-by-step result is -7*sin(7*x)^2+7*cos(7*x)^2.
Why is the derivative of sin(7x)*cos(7x) equal to -7*sin(7*x)^2+7*cos(7*x)^2?▼
Because differentiation measures how a function changes — applying the rules to sin(7x)*cos(7x) yields -7*sin(7*x)^2+7*cos(7*x)^2. See the full step-by-step breakdown above.