Document2 - Arkansas Tech University

2sinx — 3cosx = 1 2sinx — 3cosx+1 (2 sinx) (3 cosx + 1) 4sin x —9cos x +6cosx+1 4(1—cos x+6cosx+1 O = 13cos2 x +6cosx —3 62 — cosx 203) _6±v'î5î cosx 0.3022 x. 72.40 or28160 287.60 and 139.80 do not check. The solutions are 72.40, 220.20. 2 COS x 2 cos x 2 cos x cosx 1+3secx cos x cos x + 3 (-1)2 2(2) o o no solution 59. cos x 1 ... ................
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