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3 years ago

7

A line passes through the two given points. Is it vertical , horizontal ,or neither ? (8, 3), (8, -4) Vertical Horizontal Neithe

r

2 answers:

n200080 [17]3 years ago

6 0

Its neither because its slanted

fredd [130]3 years ago

3 0

Vertical.

the x value its the same for both, so you are going to the same point before moving up or down for the y value.

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Sidana [21]

Answer:

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Step-by-step explanation:

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GrogVix [38]

Answer:

$\frac{\cos\left(2x\right)-\cos\left(4x\right)}{\sin\left(2x\right)+\sin\left(4x\right)}=\tan\left(x\right)$

Step-by-step explanation:

$\frac{\cos\left(2x\right)-\cos\left(4x\right)}{\sin\left(2x\right)+\sin\left(4x\right)}$

Apply formula:

$\cos\left(A\right)-\cos\left(B\right)=-2\cdot\sin\left(\frac{A+B}{2}\right)\cdot\sin\left(\frac{A-B}{2}\right)$ and

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$=\frac{-2\cdot\sin\left(\frac{2x+4x}{2}\right)\cdot\sin\left(\frac{2x-4x}{2}\right)}{2\cdot\sin\left(\frac{2x+4x}{2}\right)\cdot\cos\left(\frac{2x-4x}{2}\right)}$

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$=\tan\left(x\right)$

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$\frac{\cos\left(2x\right)-\cos\left(4x\right)}{\sin\left(2x\right)+\sin\left(4x\right)}=\tan\left(x\right)$

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