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3 years ago

Help please!!

2 answers:

6 0

<span>The cosine of pi/2 is 0 so the problem really says "find the angle between - pi/2 and pi/2 whose tan = 0. That would be the same as asking for the angle whose sin is 0. That would be 0.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
</span>

ElenaW [278]3 years ago

4 0

Answer:

The angle is 0°.

Step-by-step explanation:

Consider the provided trigonometric function.

$tan^{-1}(cos\frac{\pi}{2})$

The given interval $[\frac{-\pi}{2}, \frac{\pi}{2}]$

The value of $cos\frac{\pi}{2}=0$

Now substitute the respective value in the provided trigonometric function.

$tan^{-1}(tan(0))=0$ by inverse property of trigonometric function

Hence, the angle is 0°.

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3 years ago

A lookout tower is 16 meters tall. Its shadow is 12 meters long. Close by, there is a wooden column that is 4 meters tall. How l

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Step-by-step explanation:

If we draw this out, we'll see that there are actually two similar right triangles (see attachment), which means that we can set up a proportion.

The height of the lookout tower corresponds to the height of the wooden column, while the shadow of the lookout tower corresponds to the shadow of the wooden column. We can then write:

(height of lookout tower) / (shadow of tower) = (height of column) / (shadow of column)

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