Kenneth S. answered • 01/24/16
Tutor
4.8
(62)
Expert Help in Algebra/Trig/(Pre)calculus to Guarantee Success in 2018
Expand sin 2x as 2 sin x cos x.
Rewrite (tan x + cos x) as sum of ratio of sinx to cosx + ratio of cosx to sinx...then find LCD of this; you'll get numerator sin2x + cos2x and denominator (sinx cosx).
Can you take it from here?
