2 years ago

Can somebody help me with this

Mathematics

1 answer:

bekas [8.4K]2 years ago

3 0

Answer:

8) 260 mm

9)? .............

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barxatty [35]

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Range: [7850, ∞)

Step-by-step explanation:

A function is defined by the set of ordered pairs having different output values for every input value.

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Domain of the given function → [0, ∞)

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$cot^2 x = \frac{15}{5} = 3$

Next take the sqrt of both sides (include plus/minus)
$cot x = \pm \sqrt{3}$

Now take reciprocal of both sides, this will change trig function to 'tan'
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$tan x = \pm \frac{1}{\sqrt{3}} = \pm \frac{\sqrt{3}}{3}$

Finally use the unit circle or inverse tan on your calculator to find x.
There will be 4 solutions, one for each quadrant.

$x = \frac{\pi}{6}, \frac{5\pi}{6}, \frac{7\pi}{6}, \frac{11\pi}{6}$

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2 years ago

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Step-by-step explanation:

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Step-by-step explanation:

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