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Sagot :
By using a trigonometric table, we will see that:
cotangent(3pi/4) = -1
How to find the value of the cotangent?
We want to find:
cotangent(3pi/4)
This is equal to:
[tex]\frac{cos(3pi/4)}{sin(3pi/4)}[/tex]
We can use a table to evaluate these two, we know that:
cos(3pi/4) = -√2/2
sin(3pi/4) = √2/2
Then:
[tex]\frac{cos(3pi/4)}{sin(3pi/4)} = \frac{-\sqrt{2}*2 }{\sqrt{2}*2 } = -1[/tex]
If you want to learn about trigonometric functions:
https://brainly.com/question/8120556
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