Respuesta :

3pi/4 is in the second quadrant so the cotangent will negative

it will equal - cot pi/4  which is -1

Its A
calculista

Answer:

[tex]cot(\frac{3\pi}{4})=-1[/tex]

Step-by-step explanation:

we know that

[tex]\pi\ radians=180\ degrees[/tex]

so

[tex]\frac{3\pi}{4}\ radians=135\ degrees[/tex]

The angle belong to the II quadrant ----> the function cotangent is negative

[tex]cot(\frac{3\pi}{4})=cot(135\°)=-cot(45\°)[/tex]

Remember that

[tex]cot(45\°)=1[/tex]

therefore

[tex]cot(\frac{3\pi}{4})=-1[/tex]

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