3 years ago

How much wood could a woodpecker peck if a woodpecker could peck wood? (this is a legitimate question on my homework)

1 answer:

8 0

A woodpecker can chuck wood

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gizmo_the_mogwai [7]

Answer:

See below.

Step-by-step explanation:

$\cot(x-\frac{\pi}{2})=-\tan(x)$

Convert the cotangent to cosine over sine:

$\frac{\cos(x-\frac{\pi}{2} )}{\sin(x-\frac{\pi}{2})} =-\tan(x)$

Use the cofunction identities. The cofunction identities are:

$\sin(x)=\cos(\frac{\pi}{2}-x)\\\cos(x)=\sin(\frac{\pi}{2}-x)$

To convert this, factor out a negative one from the cosine and sine.

$\frac{\cos(-(\frac{\pi}{2}-x ))}{\sin(-(\frac{\pi}{2}-x))} =-\tan(x)$

Recall that since cosine is an even function, we can remove the negative. Since sine is an odd function, we can move the negative outside:

$\frac{\cos((\frac{\pi}{2}-x ))}{-\sin((\frac{\pi}{2}-x))} =-\tan(x)\\-\frac{\sin(x)}{\cos(x)} =-\tan(x)\\-\tan(x)\stackrel{\checkmark}{=}-\tan(x)$

8 0

3 years ago

svetoff [14.1K]

I hope it helps. .........

3 0

3 years ago

vitfil [10]

Answer:

I would say it's not reasonable. the answer would be the first one

Step-by-step explanation:

6 0

2 years ago

Evgen [1.6K]

Split the room into 2 rectangles
area = 5*4 + 3*3 = 29 sq ft

So the cost is 29*8 = $232

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3 years ago

NeX [460]

98%
Hope this helps you :)

4 0

3 years ago

How much wood could a woodpecker peck if a woodpecker could peck wood? (this is a legitimate question on my homework)​