What is the derivative of 4e^xcos(x) ?

The derivative of 4e^xcos(x) is 4(e^xcos(x)-e^xsin(x))

What is the first derivative of 4e^xcos(x) ?

The first derivative of 4e^xcos(x) is 4(e^xcos(x)-e^xsin(x))

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derivative of

4 e^{x} cos (x)

4 (e^{x} cos (x) - e^{x} sin (x))

Solution steps

\frac{d}{d x} (4 e^{x} cos (x))

Take the constant out:

(a \cdot f)^{'} = a \cdot f^{'}

= 4 \frac{d}{d x} (e^{x} cos (x))

Apply the Product Rule:

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

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

= 4 (\frac{d}{d x} (e^{x}) cos (x) + \frac{d}{d x} (cos (x)) e^{x})

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

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

= 4 (e^{x} cos (x) + (- sin (x)) e^{x})

Simplify

= 4 (e^{x} cos (x) - e^{x} sin (x))

(x + y)^{2} d x + (2 x y + x^{2} - 9) d y = 0, y (1) = 1

\frac{d}{d x} (\frac{x ^{2}}{( 1 + x ) ^{4}})

\int_{0}^{2} x \cdot 3^{x} d x

\int cot^{3} (x) \cdot csc^{2} (x) d x

\int 4 x^{3} + x^{2} d x

What is the derivative of 4e^xcos(x) ?
The derivative of 4e^xcos(x) is 4(e^xcos(x)-e^xsin(x))
What is the first derivative of 4e^xcos(x) ?
The first derivative of 4e^xcos(x) is 4(e^xcos(x)-e^xsin(x))