How do you simplify trig expressions?
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I'm really confused. How you simplify these problems A. tan(x)^2 + 1/ 1 + cot(x)^2 B. sec(x) x tan(x) x cos(x) C.sin(x)^2 x cot(x) x csc(x) Please show the steps and ...show more
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Answer:
A) [tan^2 x + 1] / [ 1 + cot^2 x] = [tan^2 x + 1] / [ 1 + 1/tan^2 x] =[tan^2 x + 1] / [(tan^2 x + 1)/ tan^2 x] = tan^2 x B) sec x tan x cos x = (1/cos x ) * tan x * cos x = tan x C) sin^2 x * ( cos x / sin x) * (1/sin x) = cos x
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