Was ist der genaue Wert von $cot (\frac{π}{2})$ $cot (pi / 2)$ ?

$cot (\frac{π}{2}) = \frac{1}{tan (\frac{π}{2})} = \frac{1}{\infty} = 0$ $color(blue)(cot (pi/2) = 1 / tan (pi/2) = 1/ oo = 0$

Bildquelle hier eingeben

Wie aus der obigen Tabelle hervorgeht,
$cot (\frac{π}{2}) = \frac{1}{tan (\frac{π}{2})}$ $cot (pi/2) = 1 / tan (pi/2)$

Aber $tan (\frac{π}{2}) = \infty$ $tan (pi/2) = oo$

Daher $cot (\frac{π}{2}) = \frac{1}{tan (\frac{π}{2})} = \frac{1}{\infty} = 0$ $cot (pi/2) = 1 / tan (pi/2) = 1/ oo = 0$

Was ist der genaue Wert von cot(π2)cot (pi / 2) ?