Come trovi il valore di #cot 270 #?
Risposta:
#cot270^circ=0#
Spiegazione:
Qui ,
#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#
#cot270^circ=0#
Qui ,
#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#