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3 years ago

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

2 answers:

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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em um campeonato de ciclismo um atleta precisou percorrer 54 000 m para a faixa de Chegada Sabendo que Ele demorou 7 2000 Segund

Aleonysh [2.5K]

Answer:

Average speed in km / h = 2.7 km/h

Step-by-step explanation:

Given:

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Find:

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Computation:

Average speed = Distance / Time

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Average speed in km / h = 0.75 x 3.6

Average speed in km / h = 2.7 km/h

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Evaluate the expression for n=-4<br> n-1

KonstantinChe [14]

Answer:

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−1

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