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2 years ago

Help me please it easy.

Mathematics

2 answers:

Dahasolnce [82]2 years ago

6 0

ok, what do you need help with?

gregori [183]2 years ago

4 0

Answer: there is no picture attached or equation? what's the question?

Step-by-step explanation:

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Simplify the expression cos x cot x+ sin x please select the best answer from the choices provided a.0, b.csc x, c. Tan x, d sec

expeople1 [14]

Answer:

$cot x = \frac{cos x}{sin x}$

$cos x \frac{cos x}{sin x} + sin x$

$\frac{cos^2 x}{sin x} +sin x$

$sin^2 x + cos^2 x =1$

Solving for $cos^2 x$ we got $cos^2 x =1 -sin^2 x$ and replacing this we got:

$\frac{1-sin^2 x}{sin x} +sin x$

$\frac{1}{sin x} -\frac{sin^2 x}{sin x} +sin x$

$csc x -sin x + sin x = csc x$

And then the best option for this case would be:

b.csc x

Step-by-step explanation:

For this case we have the following expression given:

$cos x cot x + sin x$

We know from math properties that the definition for cot is $cot x = \frac{cos x}{sin x}$

If we use this definition we got:

$cos x \frac{cos x}{sin x} + sin x$

$\frac{cos^2 x}{sin x} +sin x$

Now we can use the following identity:

$sin^2 x + cos^2 x =1$

Solving for $cos^2 x$ we got $cos^2 x =1 -sin^2 x$ and replacing this we got:

$\frac{1-sin^2 x}{sin x} +sin x$

$\frac{1}{sin x} -\frac{sin^2 x}{sin x} +sin x$

$csc x -sin x + sin x = csc x$

And then the best option for this case would be:

b.csc x

4 0

3 years ago

Jose needs to enclose a rectangular section of his yard. The perimeter of the section is 27 feet, and the area is 35 square foot

Ratling [72]

A = 35 sq ft
<span>L = 10 ft </span>
<span>W = 3.5 ft</span>

3 0

3 years ago

Please answer. 30 points.

kotegsom [21]

Answer:

Srry umm can you zoom in I cant see srry!

Step-by-step explanation:

7 0

2 years ago

Can you please help me with this question

patriot [66]

7 guests
It costs 5 dollars per guest, so divide 35 by 5

3 0

2 years ago

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7x+3(×+6)=8 .....whut , it makes NO SENSE!!!!!!!

VikaD [51]

Hopefully this helps.

3 0

3 years ago

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