How do you find the value of #cot 270#?

Question

How do you find the value of #cot 270^circ#?

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Answer 1 · 2018-08-03T07:11:59

#cot270^circ=0#

Here ,

#cot270^circ=cot(360^circ-90^circ)#

#:.cot270^circ=cot(2pi-pi/2)#

#:.cot270^circ=-cot(pi/2)#

#:.cot270^circ=-cos(pi/2)/sin(pi/2)#

#:.cot270^circ=-0/1=0#