Precalculus, Chapter 5, 5.3, Section 5.3, Problem 21
tan(3x)tan(x-1)=0 solving each part, tan(3x)=0 General solutions for tan(3x)=0 are, 3x=0+pin x=(pin)/3 General solutions for tan(x-1)=0 are, x-1=0+pin x=1+pin so the solutions are, x=(pin)/3 , x=pin+1
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