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lisabon 2012 [21]
3 years ago
7

Cot^2x-csc^2x=-1 for all values of x true or falsse

Mathematics
2 answers:
Leno4ka [110]3 years ago
4 0
Our basis for this equality is the pythagorean theorems of trigonometry. There are three equations for the pythagorean theorems. These are:

sin²x + cos²x =1
1 + tan²x = sec² x
1 + cot² x = csc² x

These are all derived from circle geometry on the cartesian plane. Now, the useful trigonometric property to be used is the third one. Rearranging this, we come up with

cot²x - csc²x = -1

This coincided with the given equation. Therefore, this is true. This is because it is already established from the pythagorean theorems.
Korolek [52]3 years ago
3 0

Answer: True Apex

Step-by-step explanation:

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ExtremeBDS [4]
<h3>Answer: Choice A. 8pi  feet</h3>

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Explanation:

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The full circumference of a circle with radius r is

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(1/4)*32pi = (1/4*32)pi = 8pi

The arc length is exactly 8pi feet long

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3 years ago
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5 0
1 year ago
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AURORKA [14]

Answer:

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