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3 years ago

Remove all perfect squares from inside the square root. √20 = urgent need help now first actual answer gets the thingy

Mathematics

2 answers:

Mariulka [41]3 years ago

4 0

Your answer is 2 root 5

xz_007 [3.2K]3 years ago

3 0

Answer:

$2\sqrt{5}$

Step-by-step explanation:

$\sqrt{20}$

20 can be written as a product of 4 and 5.

$\sqrt{4 \times 5}$

4 is a perfect square.

$\sqrt{4} \times \sqrt{5}$

Square root of 4 is 2.

$2 \times \sqrt{5}$

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Step-by-step explanation:

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A barrel of 20 apples has 2 rotten apples and 18 good apples. 7 apples are selected at random from the barrel. What is the expec

KengaRu [80]

Answer:

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Step-by-step explanation:

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3 years ago

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astraxan [27]

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3 years ago

What is a solution to. (x + 6)(x + 2) = 60?

zimovet [89]

Answer:

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3 years ago

What is the derivative of the following function? f(x) = 4x^6/cos^5(x)

KIM [24]

Answer:

$f'(x) = \frac{24x^{5} \cos x + 20x^{6}\sin x}{\cos^{6}x }$

Step-by-step explanation:

We have to find the derivative of the following function:

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Now, differentiating both sides with respect to x we get,

$f'(x) = \frac{\cos^{5}x (24x^{5}) - 4x^{6}(5\cos^{4}x )(- \sin x)}{(\cos^{5}x )^{2}}$

⇒ $f'(x) = \frac{ 24x^{5} \cos x + 20 x^{6}\sin x}{\cos^{6}x }$ (Answer)

{Since, we know that, $\frac{d(mx^{n} )}{dx} = m \times n x^{(n - 1)}$ and $\frac{d(\cos^{n} x)}{dx} = n \cos^{(n - 1)} x(- \sin x)$ }

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4 years ago