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3 years ago

15

What is an example of a coefficient? 5 + x x + 5 5x 5 - x

1 answer:

My name is Ann [436]3 years ago

7 0

Answer:

I think the answer to the question is 5x

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Sin theta+costheta/sintheta -costheta+sintheta-costheta/sintheta+costheta=2sec2/tan2 theta -1

sleet_krkn [62]

$\dfrac{sin\theta + cos\theta}{sin\theta-cos\theta}+\dfrac{sin\theta-cos\theta}{sin\theta+cos\theta}=\dfrac{2sec^2\theta}{tan^2\theta-1}$

From Left side:

$\dfrac{sin\theta + cos\theta}{sin\theta-cos\theta}\bigg(\dfrac{sin\theta+cos\theta}{sin\theta+cos\theta}\bigg)+\dfrac{sin\theta-cos\theta}{sin\theta+cos\theta}\bigg(\dfrac{sin\theta-cos\theta}{sin\theta-cos\theta}\bigg)$

$\dfrac{sin^2\theta+2cos\thetasin\theta+cos^2\theta}{sin^2\theta-cos^2\theta}+\dfrac{sin^2\theta-2cos\thetasin\theta+cos^2\theta}{sin^2\theta-cos^2\theta}$

NOTE: sin²θ + cos²θ = 1

$\dfrac{1 + 2cos\theta sin\theta}{sin^2\theta-cos^2\theta}+\dfrac{1-2cos\theta sin\theta}{sin^2\theta-cos^2\theta}$

$\dfrac{1 + 2cos\theta sin\theta+1-2cos\theta sin\theta}{sin^2\theta-cos^2\theta}$

$\dfrac{2}{sin^2\theta-cos^2\theta}$

$\dfrac{2}{\bigg(sin^2\theta-cos^2\theta\bigg)\bigg(\dfrac{cos^2\theta}{cos^2\theta}\bigg)}$

$\dfrac{2sec^2\theta}{\dfrac{sin^2\theta}{cos^2\theta}-\dfrac{cos^2\theta}{cos^2\theta}}$

$\dfrac{2sec^2\theta}{tan^2\theta-1}$

Left side = Right side <em>so proof is complete</em>

8 0

3 years ago

Read 2 more answers

Y=7<br> Y=-2x+1<br><br> Find the intersection

stealth61 [152]

I was going to answer but she gave you the answer sooo

3 0

2 years ago

What mathematical sentence is represented by the diagram?

cricket20 [7]

My only guess is a^2 + b^2 = c^2

7 0

3 years ago

Find the surface area of the cone in terms of pi.

gayaneshka [121]

Answer:

33π FT^2

Step-by-step explanation:

A=πr(r+(h2+r2)^1/2)

= π3(3+8)

=33π

8 0

2 years ago

Find the standard form.

Deffense [45]

Answer:

B.

Step-by-step explanation:

Lets break this down piece by piece.

So first, add 500,000 and 30,000. that would be 530,000.

Next, add on 5,000, which is 535,000

After that, add 300. ( 535,300. )

Then add up 50 and 3 which is 53.

Lastly, your answer is 535,353.

4 0

2 years ago