Mathematics: What is the domain and range of f(x) = ± √x^2?

What is the domain and range of f(x) = ± √x^2?

Ответ:

MorallyGray

14.03.2022

Mathematics

Domain: All real Numbers or (infinity, Infinity)

Range: All real Numbers or (infinity, Infinity)

Step-by-step explanation:

I am assuming the equation is F(x) = $\sqrt{x} ^2$

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Ответ:

aimee80

14.01.2021

Mathematics

we have three similar triangles, because each has a right angle and shares an angle. let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

$(5 + x)/6 = 6/x$

$x(x+5) = 36$

$x^2 +5x - 36 = 0$

$(x+9)(x-4) = 0$

we reject the negative root and conclude x=4

answer: 4

If bc = 6 and ad = 5, find dc. a) 4 b) 4.5 c) 7.2

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What is the domain and range of f(x) = ± √x^2?

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