tan(pi) = 0
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You need to know that tangent = sin / cos.
You also need to know that in the unit circle, pi (this is in radian) can be converted into degree by multiplying pi by 180/pi. So pi is equivalent to 180 degrees.
tangent (pi) = sin (pi) / cos (pi)
tangent (pi) = 0 / -1 = 0
So tangent of pi is 0.
You also need to know that in the unit circle, pi (this is in radian) can be converted into degree by multiplying pi by 180/pi. So pi is equivalent to 180 degrees.
tangent (pi) = sin (pi) / cos (pi)
tangent (pi) = 0 / -1 = 0
So tangent of pi is 0.
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Pi is (-1,0) so tan is 0/-1. Tangent is 0