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Pie
3 years ago
6

How many solutions does cosx =x^ 2 have?

Mathematics
1 answer:
alexgriva [62]3 years ago
3 0
Like any other polynomial, you judge the number of solutions by the highest degree of the polynomial.  This is a second degree polynomial so it has 2 solutions.  They are x = +[sqrt(cos x)] and x = - [sqrt(cos x)].  If you graph those on a calculator the positive portion of the graph is above the x axis and the negative portion is below the x axis.  It's really cool looking.  You should graph it to see.
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Answer:

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Step-by-step explanation:

Given the equation:

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If x=1, y=-1

This can be confirmed using addition law of indices()

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Step-by-step explanation:

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2 years ago
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3 years ago
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AlladinOne [14]
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4 years ago
Einstein Office Equipment has a rental plan for office machines. A fax machine that lists for $722.98 can be rented for 22% of t
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Answer:

$13.68


Step-by-step explanation:

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\frac{164.15}{12}=13.68 dollars

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