What is the derivative of 2xsqrt(25-x^2) ?

The derivative of 2xsqrt(25-x^2) is (2(-2x^2+25))/(sqrt(25-x^2))

What is the first derivative of 2xsqrt(25-x^2) ?

The first derivative of 2xsqrt(25-x^2) is (2(-2x^2+25))/(sqrt(25-x^2))

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\frac{d}{d x} (2 x 25 - x^{2})

\frac{2 ( - 2 x ^{2} + 25 )}{25 - x ^{2}}

Solution steps

\frac{d}{d x} (2 x 25 - x^{2})

Take the constant out:

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

= 2 \frac{d}{d x} (x 25 - x^{2})

Apply the Product Rule:

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

f = x, g = 25 - x^{2}

= 2 (\frac{d x}{d x} 25 - x^{2} + \frac{d}{d x} (25 - x^{2}) x)

\frac{d x}{d x} = 1

\frac{d}{d x} (25 - x^{2}) = - \frac{x}{25 - x ^{2}}

= 2 (1 \cdot 25 - x^{2} + (- \frac{x}{25 - x ^{2}}) x)

Simplify

2 (1 \cdot 25 - x^{2} + (- \frac{x}{25 - x ^{2}}) x) : \frac{2 ( - 2 x ^{2} + 25 )}{25 - x ^{2}}

= \frac{2 ( - 2 x ^{2} + 25 )}{25 - x ^{2}}

What is the derivative of 2xsqrt(25-x^2) ?
The derivative of 2xsqrt(25-x^2) is (2(-2x^2+25))/(sqrt(25-x^2))
What is the first derivative of 2xsqrt(25-x^2) ?
The first derivative of 2xsqrt(25-x^2) is (2(-2x^2+25))/(sqrt(25-x^2))