Cot(3pi/4)

Cot(3pi/4)

Input
cot(3×pi/4)
Result
-1
Conversion from radians to degrees
cot(135 °)
Reference triangle for angle (3 π)/4 radians
width | cos((3 pi)/4) = -1/sqrt(2)~~-0.707107
height | sin((3 pi)/4) = 1/sqrt(2)~~0.707107
Integral representation
cot((3 pi)/4) = – integral_(pi/2)^((3 pi)/4) csc^2(t) dt

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