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Popular >

derivative of e^{2x}cos(3x)

Solution

derivative of

e^{2 x} cos (3 x)

Solution

2 e^{2 x} cos (3 x) - 3 e^{2 x} sin (3 x)

Solution steps

\frac{d}{d x} (e^{2 x} cos (3 x))

Apply the Product Rule:

(f \cdot g)^{'} = f^{'} \cdot g + f \cdot g^{'}

f = e^{2 x}, g = cos (3 x)

= \frac{d}{d x} (e^{2 x}) cos (3 x) + \frac{d}{d x} (cos (3 x)) e^{2 x}

\frac{d}{d x} (e^{2 x}) = e^{2 x} \cdot 2

\frac{d}{d x} (cos (3 x)) = - sin (3 x) \cdot 3

= e^{2 x} \cdot 2 cos (3 x) + (- sin (3 x) \cdot 3) e^{2 x}

Simplify

= 2 e^{2 x} cos (3 x) - 3 e^{2 x} sin (3 x)

Popular Examples

tangent of f(x)=4tan(x),\at x= pi/3 tangent of

f (x) = 4 tan (x), at x = \frac{π}{3}

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\int_{0}^{3} π (9 - x^{2})^{2} d x

limit as x approaches 0+of (x^3+3)/x

x \to 0 + lim (\frac{x ^{3} + 3}{x})

limit as x approaches 4 of 6-x

x \to 4 lim (6 - x)

derivative of e^{3x}x

\frac{d}{d x} (e^{3 x} x)

Frequently Asked Questions (FAQ)

What is the derivative of e^{2x}cos(3x) ?
The derivative of e^{2x}cos(3x) is 2e^{2x}cos(3x)-3e^{2x}sin(3x)
What is the first derivative of e^{2x}cos(3x) ?
The first derivative of e^{2x}cos(3x) is 2e^{2x}cos(3x)-3e^{2x}sin(3x)