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What is the exact value of #cot (pi/2)#?

1 Answer

sankarankalyanam

Mar 17, 2018

#color(blue)(cot (pi/2) = 1 / tan (pi/2) = 1/ oo = 0#

Explanation:

enter image source here

As may be seen from the table above,
# cot (pi/2) = 1 / tan (pi/2)#

But #tan (pi/2) = oo#

Hence #cot (pi/2) = 1 / tan (pi/2) = 1/ oo = 0#

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