2ctgx+3ctgx+m=0 при x=пи/4

Question

2ctgx+3ctgx+m=0 при x=пи/4

Answer 1

2ctgx+3ctgx+m=0 , x=π/4
ctg(π/4)=1
2.1+3.1+m=0
2+3+m=0
5+m=0
m=-5
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