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Solve task for: tan(x) is cos(x)=(1/4).

If tan(x) is cos(x)=(1/4).

What quadrant is the solution?

asked Jul 27, 2017 in Algebra by Braiden

1 Answer

tanx = ±√(sec2x-1) = ±√([secx]2-1) =±√([4]2-1) = ±√(16-1)=±√15

answered Jul 27, 2017 by quickwriter (2,510 points)