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3 years ago

Use properties to evaluate (i =)(-10). ОА. -5 ОВ. 2 Ос. 5 OD. -2

Mathematics

1 answer:

vampirchik [111]3 years ago

8 0

Answer:

5siduodipfpfpdp n xoudoudoydosu9

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HELP PLEASEEEE!! First correct answer gets brainliest !

Bingel [31]

It is not a function did I do good

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3 years ago

Find dy/dx given that y = sin x / 1 + cos x

kobusy [5.1K]

Answer:

$\frac{1}{1 + \cos(x) }$

Step-by-step explanation:

$y = \frac{ \sin(x) }{1 + \cos(x) }$

<u>differentiating numerator wrt x :-</u>

(sinx)' = cos x

<u>differentiating denominator wrt x :- </u>

(1 + cos x)' = (cosx)' = - sinx

Let's say the denominator was "v" and the numerator was "u"

$(\frac{u}{v} )' = \frac{v. \: (u)' - u.(v)' }{ {v}^{2} }$

here,

since u is the numerator u= sinx and u = cos x
v(denominator) = 1 + cos x; v' = - sinx

$= \frac{((1 + \cos \: x) \cos \: x )- (\sin \: x. ( - \sin \: x) ) }{( {1 + \cos(x)) }^{2} }$

$= \frac{ \cos(x) + \cos {}^{2} (x) + \sin {}^{2} (x) }{(1 + \cos \: x) {}^{2} }$

since cos²x + sin²x = 1

$= \frac{ \cos \: x + 1}{(1 + \cos \: x) {}^{2} }$

diving numerator and denominator by 1 + cos x

$= \frac{1}{1 + \cos(x) }$

6 0

3 years ago

Please help me thnk you

kramer

For this question, we use the Pythagorean theorem.

$a^2+b^2=c^2$

We know the lengths of the legs, a and b.
$a=3$
$b=4$

Now, let's solve for the hypotenuse, c.

$3^2+4^2=c^2$
$25=c^2$

Take the positive square root.

$\boxed{c=5}$

Hope this helps! :)

8 0

3 years ago

Read 2 more answers

Find the polynomial f(x) of degree 5 that has the following zeros -3(mulitiplicity 2),5,8,-7

noname [10]

Answer:

Step-by-step explanation:

(x + 3)²(x - 5)(x - 8)(x + 7)

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2 years ago

Goran ran three times last week. Here are the distances he ran (in kilometers).9.94,6.65,10 What is the total distance Goran ran

kolbaska11 [484]

Answer:

26.59 kilometers

Step-by-step explanation:

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3 years ago