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Popular >

derivative of 4x^2sec(2x)

Solution

\frac{d}{d x} (4 x^{2} sec (2 x))

Solution

4 (2 x sec (2 x) + sec (2 x) tan (2 x) \cdot 2 x^{2})

Solution steps

\frac{d}{d x} (4 x^{2} sec (2 x))

Take the constant out:

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

= 4 \frac{d}{d x} (x^{2} sec (2 x))

Apply the Product Rule:

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

f = x^{2}, g = sec (2 x)

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

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

\frac{d}{d x} (sec (2 x)) = sec (2 x) tan (2 x) \cdot 2

= 4 (2 x sec (2 x) + sec (2 x) tan (2 x) \cdot 2 x^{2})

Graph

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Frequently Asked Questions (FAQ)

What is the derivative of 4x^2sec(2x) ?
The derivative of 4x^2sec(2x) is 4(2xsec(2x)+sec(2x)tan(2x)*2x^2)
What is the first derivative of 4x^2sec(2x) ?
The first derivative of 4x^2sec(2x) is 4(2xsec(2x)+sec(2x)tan(2x)*2x^2)