How do you solve the identity # 2 cot x = -3/2#?

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Answer 1 · 2018-05-09T23:36:57

the answer
#x=2.2143#

#2 cot x = -3/2#

we will hit the two side by #1/2#

#cotx=-3/4#

cotx is negative in second and forth quadrants

we will take #cot^-1# to both side , we will get

#x=cot^-1(-3/4)#

#cot^-1# is negative in the second quadrant

so the most common quadrant is the second quadrant

#x=2.2143#