3 years ago

2/3(-2)+42/3(-1)+42/3(0)+42/3(1)+42/3(2)+4SOLVE PLEASE!!

Mathematics

1 answer:

Zina [86]3 years ago

7 0

Answer:

how do u want meto read it?

Step-by-step explanation:

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Verify the identity. cot(x - pi/2) = -tan(x)

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:

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

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dlinn [17]

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What is the percent change if the student population of the school goes from 380 students to 335 students? Round to the nearest

lys-0071 [83]

Answer:

12% decrease

Step-by-step explanation:

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Step-by-step explanation:

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346 divided by 2 would be 153. Subtract 92, and that would lead you with 61.
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